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Fix a seg fault which happens when an input file provided to 'objtool
orc generate' doesn't have a '.shstrtab' section (for instance, object
files produced by clang don't have this section).
Signed-off-by: Simon Ser <[email protected]>
Signed-off-by: Josh Poimboeuf <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Link: http://lkml.kernel.org/r/c0f2231683e9bed40fac1f13ce2c33b8389854bc.1514666459.git.jpoimboe@redhat.com
Signed-off-by: Ingo Molnar <[email protected]>
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Fix a seg fault when no parameter is provided to 'objtool orc'.
Signed-off-by: Simon Ser <[email protected]>
Signed-off-by: Josh Poimboeuf <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Link: http://lkml.kernel.org/r/9172803ec7ebb72535bcd0b7f966ae96d515968e.1514666459.git.jpoimboe@redhat.com
Signed-off-by: Ingo Molnar <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 page table isolation updates from Thomas Gleixner:
"This is the final set of enabling page table isolation on x86:
- Infrastructure patches for handling the extra page tables.
- Patches which map the various bits and pieces which are required to
get in and out of user space into the user space visible page
tables.
- The required changes to have CR3 switching in the entry/exit code.
- Optimizations for the CR3 switching along with documentation how
the ASID/PCID mechanism works.
- Updates to dump pagetables to cover the user space page tables for
W+X scans and extra debugfs files to analyze both the kernel and
the user space visible page tables
The whole functionality is compile time controlled via a config switch
and can be turned on/off on the command line as well"
* 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (32 commits)
x86/ldt: Make the LDT mapping RO
x86/mm/dump_pagetables: Allow dumping current pagetables
x86/mm/dump_pagetables: Check user space page table for WX pages
x86/mm/dump_pagetables: Add page table directory to the debugfs VFS hierarchy
x86/mm/pti: Add Kconfig
x86/dumpstack: Indicate in Oops whether PTI is configured and enabled
x86/mm: Clarify the whole ASID/kernel PCID/user PCID naming
x86/mm: Use INVPCID for __native_flush_tlb_single()
x86/mm: Optimize RESTORE_CR3
x86/mm: Use/Fix PCID to optimize user/kernel switches
x86/mm: Abstract switching CR3
x86/mm: Allow flushing for future ASID switches
x86/pti: Map the vsyscall page if needed
x86/pti: Put the LDT in its own PGD if PTI is on
x86/mm/64: Make a full PGD-entry size hole in the memory map
x86/events/intel/ds: Map debug buffers in cpu_entry_area
x86/cpu_entry_area: Add debugstore entries to cpu_entry_area
x86/mm/pti: Map ESPFIX into user space
x86/mm/pti: Share entry text PMD
x86/entry: Align entry text section to PMD boundary
...
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Pull networking fixes from David Miller:
1) IPv6 gre tunnels end up with different default features enabled
depending upon whether netlink or ioctls are used to bring them up.
Fix from Alexey Kodanev.
2) Fix read past end of user control message in RDS< from Avinash
Repaka.
3) Missing RCU barrier in mini qdisc code, from Cong Wang.
4) Missing policy put when reusing per-cpu route entries, from Florian
Westphal.
5) Handle nested PCI errors properly in bnx2x driver, from Guilherme G.
Piccoli.
6) Run nested transport mode IPSEC packets via tasklet, from Herbert
Xu.
7) Fix handling poll() for stream sockets in tipc, from Parthasarathy
Bhuvaragan.
8) Fix two stack-out-of-bounds issues in IPSEC, from Steffen Klassert.
9) Another zerocopy ubuf handling fix, from Willem de Bruijn.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (33 commits)
strparser: Call sock_owned_by_user_nocheck
sock: Add sock_owned_by_user_nocheck
skbuff: in skb_copy_ubufs unclone before releasing zerocopy
tipc: fix hanging poll() for stream sockets
sctp: Replace use of sockets_allocated with specified macro.
bnx2x: Improve reliability in case of nested PCI errors
tg3: Enable PHY reset in MTU change path for 5720
tg3: Add workaround to restrict 5762 MRRS to 2048
tg3: Update copyright
net: fec: unmap the xmit buffer that are not transferred by DMA
tipc: fix tipc_mon_delete() oops in tipc_enable_bearer() error path
tipc: error path leak fixes in tipc_enable_bearer()
RDS: Check cmsg_len before dereferencing CMSG_DATA
tcp: Avoid preprocessor directives in tracepoint macro args
tipc: fix memory leak of group member when peer node is lost
net: sched: fix possible null pointer deref in tcf_block_put
tipc: base group replicast ack counter on number of actual receivers
net_sched: fix a missing rcu barrier in mini_qdisc_pair_swap()
net: phy: micrel: ksz9031: reconfigure autoneg after phy autoneg workaround
ip6_gre: fix device features for ioctl setup
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Fix the following Clang enum conversion warning:
arch/x86/decode.c:141:20: error: implicit conversion from enumeration
type 'enum op_src_type' to different enumeration
type 'enum op_dest_type' [-Werror,-Wenum-conversion]
op->dest.type = OP_SRC_REG;
~ ^~~~~~~~~~
It just happened to work before because OP_SRC_REG and OP_DEST_REG have
the same value.
Signed-off-by: Lukas Bulwahn <[email protected]>
Signed-off-by: Josh Poimboeuf <[email protected]>
Reviewed-by: Nicholas Mc Guire <[email protected]>
Reviewed-by: Nick Desaulniers <[email protected]>
Cc: Jiri Slaby <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Fixes: baa41469a7b9 ("objtool: Implement stack validation 2.0")
Link: http://lkml.kernel.org/r/b4156c5738bae781c392e7a3691aed4514ebbdf2.1514323568.git.jpoimboe@redhat.com
Signed-off-by: Ingo Molnar <[email protected]>
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Daniel Borkmann says:
====================
pull-request: bpf 2017-12-28
The following pull-request contains BPF updates for your *net* tree.
The main changes are:
1) Two small fixes for bpftool. Fix otherwise broken output if any of
the system calls failed when listing maps in json format and instead
of bailing out, skip maps or progs that disappeared between fetching
next id and getting an fd for that id, both from Jakub.
2) Small fix in BPF selftests to respect LLC passed from command line
when testing for -mcpu=probe presence, from Quentin.
====================
Signed-off-by: David S. Miller <[email protected]>
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It's a follow up patch for a previous patch "perf tool: Return all
events as auto-completions after comma".
With this patch, auto-completion can work well for events with a ':'.
For example:
root@skl:/tmp# perf stat -e block:block_<TAB>
block:block_bio_backmerge block:block_rq_complete
block:block_bio_bounce block:block_rq_insert
block:block_bio_complete block:block_rq_issue
block:block_bio_frontmerge block:block_rq_remap
block:block_bio_queue block:block_rq_requeue
block:block_bio_remap block:block_sleeprq
block:block_dirty_buffer block:block_split
block:block_getrq block:block_touch_buffer
block:block_plug block:block_unplug
root@skl:/tmp# perf stat -e block:block_rq_<TAB>
block:block_rq_complete block:block_rq_issue block:block_rq_requeue
block:block_rq_insert block:block_rq_remap
root@skl:/tmp# perf stat -e block:block_rq_complete<TAB>
block:block_rq_complete
root@skl:/tmp# perf stat -e block:block_rq_complete
Signed-off-by: Jin Yao <[email protected]>
Tested-by: Arnaldo Carvalho de Melo <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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It's a follow up for one previous patch "perf tool: Improve bash command
line auto-complete for multiple events with comma."
It fixes an issue that no events are displayed when <TAB> is directly
typed after comma.
With this patch, now the result is:
root@skl:/tmp# perf stat -e cpu-cycles,<TAB>
Display all 2389 possibilities? (y or n)
alarmtimer:alarmtimer_cancel
alarmtimer:alarmtimer_fired
alarmtimer:alarmtimer_start
alarmtimer:alarmtimer_suspend
alignment-faults
arith.divider_active
BAClear_Cost
baclears.any
block:block_bio_backmerge
block:block_bio_bounce
block:block_bio_complete
block:block_bio_frontmerge
block:block_bio_queue
block:block_bio_remap
block:block_dirty_buffer
block:block_getrq
block:block_plug
block:block_rq_complete
block:block_rq_insert
block:block_rq_issue
block:block_rq_remap
block:block_rq_requeue
block:block_sleeprq
--More--
One remaining issue is that the auto-completions doesn't work well
for the event with ':'. For example, clk:clk_enable.
Because ':' is set as WORDBREAK by default in bash. Need more work
for this case.
Reported-by: Arnaldo Carvalho de Melo <[email protected]>
Signed-off-by: Jin Yao <[email protected]>
Tested-by: Arnaldo Carvalho de Melo <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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comma
perf has perf-completion.sh to define command line auto-completion in
bash/zsh.
For record/stat -e it works for single events, but isn't working when
specifying multiple events with comma.
It would be very useful if it could be fixed to make it easier by
supporting multiple events, comma separated.
With this patch, the result can be like this:
1. Support the events returned from 'perf list --raw-dump'
root@skl:/tmp# perf stat -e cpu/cache<TAB>
cpu/cache-misses/ cpu/cache-references/
root@skl:/tmp# perf stat -e cpu/cache-misses/,cpu/branch-<TAB>
cpu/branch-instructions/ cpu/branch-misses/
root@skl:/tmp# perf stat -e cpu/cache-misses/,cpu/branch-i<TAB>
root@skl:/tmp# perf stat -e cpu/cache-misses/,cpu/branch-instructions/
2. Support the events listed in /sys/bus/event_source/devices/cpu/events
root@skl:/tmp# perf stat -e cycle<TAB>
cycle_activity.cycles_l1d_miss cycle_activity.stalls_l3_miss
cycle_activity.cycles_l2_miss cycle_activity.stalls_mem_any
cycle_activity.cycles_l3_miss cycle_activity.stalls_total
cycle_activity.cycles_mem_any cycles-ct
cycle_activity.stalls_l1d_miss cycles-t
cycle_activity.stalls_l2_miss
root@skl:/tmp# perf stat -e cycles-<TAB>
cycles-ct cycles-t
root@skl:/tmp# perf stat -e cycles-t,cpu/c<TAB>
cpu/cache-misses/ cpu/cpu-cycles/ cpu/cycles-t/
cpu/cache-references/ cpu/cycles-ct/
root@skl:/tmp# perf stat -e cycles-t,cpu/cache-<TAB>
cpu/cache-misses/ cpu/cache-references/
root@skl:/tmp# perf stat -e cycles-t,cpu/cache-misses/
3. Support the uppercase event which is with prefix "cpu/"
root@skl:/tmp# perf stat -e cpu/c<TAB>
cpu/cache-misses/ cpu/cpu-cycles/ cpu/cycles-t/
cpu/cache-references/ cpu/cycles-ct/
root@skl:/tmp# perf stat -e cpu/cache-misses/,cpu/C<TAB>
cpu/CACHE-MISSES/ cpu/CPU-CYCLES/ cpu/CYCLES-T/
cpu/CACHE-REFERENCES/ cpu/CYCLES-CT/
root@skl:/tmp# perf stat -e cpu/cache-misses/,cpu/CACHE-REFERENCES/
Note that:
a) This patch only supports bash.
b) It doesn't support the cases like {},{} or {...,...}.
Signed-off-by: Jin Yao <[email protected]>
Tested-by: Arnaldo Carvalho de Melo <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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On an arm64 machine running a CONFIG_RANDOMIZE_BASE=y kernel, perf
kernel symbol resolution fails. Debugging saw symsrc_init calling the
default elf__needs_adjust_symbols() where checks for an ET_DYN (3)
ehdr.e_type failed when they should have succeeded.
Fix by adopting powerpc version of the weak elf__needs_adjust_symbols()
function, as done in commit d2332098331f ("perf probe ppc: Fix symbol
fixup issues due to ELF type").
Prior to this patch, perf test 1 would fail:
$ sudo oldperf test -v 1 |& head
1: vmlinux symtab matches kallsyms :
test child forked, pid 33374
Looking at the vmlinux_path (8 entries long)
Using /usr/lib/debug/boot/vmlinux for symbols
ERR : 0xfffe0000100f1000: do_undefinstr not on kallsyms
ERR : 0xfffe0000100f1320: do_sysinstr not on kallsyms
ERR : 0xfffe0000100f13b0: do_debug_exception not on kallsyms
ERR : 0xfffe0000100f1498: do_mem_abort not on kallsyms
ERR : 0xfffe0000100f1580: do_sp_pc_abort not on kallsyms
...
After applying this patch, perf test 1 now succeeds:
$ sudo ./newperf test -v 1 |& head
1: vmlinux symtab matches kallsyms :
test child forked, pid 33378
Looking at the vmlinux_path (8 entries long)
Using /usr/lib/debug/boot/vmlinux for symbols
WARN: 0xffff000008081000: diff name v: do_undefinstr k: __exception_text_start
WARN: 0xffff0000080819e8: diff name v: __irqentry_text_end k: __softirqentry_text_start
WARN: 0xffff000008081d08: diff name v: __entry_text_start k: __softirqentry_text_end
WARN: 0xffff00000809db5c: diff name v: flush_icache_range k: __flush_cache_user_range
WARN: 0xffff000008101908: diff name v: sys_ni_syscall k: sys_vm86old
...
Signed-off-by: Kim Phillips <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Ganapatrao Kulkarni <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Naveen N. Rao <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Will Deacon <[email protected]>
Cc: [email protected]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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While monitoring a multithread process with pid option, perf sometimes
may return sys_perf_event_open failure with 3(No such process) if any of
the process's threads die before we open the event. However, we want
perf continue monitoring the remaining threads and do not exit with
error.
Here, the patch enables perf_evsel::ignore_missing_thread for -p option
to ignore complete failure if any of threads die before we open the event.
But it may still return sys_perf_event_open failure with 22(Invalid) if we
monitors several event groups.
sys_perf_event_open: pid 28960 cpu 40 group_fd 118202 flags 0x8
sys_perf_event_open: pid 28961 cpu 40 group_fd 118203 flags 0x8
WARNING: Ignored open failure for pid 28962
sys_perf_event_open: pid 28962 cpu 40 group_fd [118203] flags 0x8
sys_perf_event_open failed, error -22
That is because when we ignore a missing thread, we change the thread_idx
without dealing with its fds, FD(evsel, cpu, thread). Then get_group_fd()
may return a wrong group_fd for the next thread and sys_perf_event_open()
return with 22.
sys_perf_event_open(){
...
if (group_fd != -1)
perf_fget_light()//to get corresponding group_leader by group_fd
...
if (group_leader)
if (group_leader->ctx->task != ctx->task)//should on the same task
goto err_context
...
}
This patch also fixes this bug by introducing perf_evsel__remove_fd() and
update_fds to allow removing fds for the missing thread.
Changes since v1:
- Change group_fd__remove() into a more genetic way without changing code logic
- Remove redundant condition
Changes since v2:
- Use a proper function name and add some comment.
- Multiline comment style fixes.
Committer testing:
Before this patch the recently added 'perf stat --per-thread' for system
wide counting would race while enumerating all threads using /proc:
[root@jouet ~]# perf stat --per-thread
failed to parse CPUs map: No such file or directory
Usage: perf stat [<options>] [<command>]
-C, --cpu <cpu> list of cpus to monitor in system-wide
-a, --all-cpus system-wide collection from all CPUs
[root@jouet ~]# perf stat --per-thread
failed to parse CPUs map: No such file or directory
Usage: perf stat [<options>] [<command>]
-C, --cpu <cpu> list of cpus to monitor in system-wide
-a, --all-cpus system-wide collection from all CPUs
[root@jouet ~]#
When, say, the kernel was being built, so lots of shortlived threads,
after this patch this doesn't happen.
Signed-off-by: Mengting Zhang <[email protected]>
Tested-by: Arnaldo Carvalho de Melo <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Cc: Cheng Jian <[email protected]>
Cc: Li Bin <[email protected]>
Cc: Wang Nan <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
[ Remove one use 'evlist' alias variable ]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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On s390, object files must be compiled with position-indepedent code in
order to be incrementally linked or linked to shared libraries.
Therefore, add -fPIC to the CFLAGS for s390 to ensure each object file
is built properly.
Reported-by: Jonathan Hermann <[email protected]>
Signed-off-by: Hendrik Brueckner <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Martin Schwidefsky <[email protected]>
Cc: Thomas Richter <[email protected]>
Cc: linux s390 list <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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This one made x86 always build with -fPIC, when the intention was for
s390 to be built that way, due to a rebase mistake.
Reported-by: Hendrik Brueckner <[email protected]>
This reverts commit 1dc4ddf112a408e607a073d951b962b6c6e2bd6c.
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Commit f231af789b11 ("perf test shell: Fix check open filename arg using
'perf trace' on s390x") added an exception for s390x to use openat()
instead of open() in the test that intercepts a open syscall to look for
the filename argument as obtained by the vfs_getname 'perf probe' it
puts in place at the getname_flags kernel function.
Its not just s390x that uses openat() instead of open(), so use 'perf
list' to look for the syscall:sys_enter_open(at)? present in the system
being tested instead of checking if the system is s390x.
In fact Namhyung pointed out that glibc 2.26 changed this behaviour, as
described in https://lwn.net/Articles/738694/, so systems where glibc is
>= 2.26 will need this patch for this test to work, which already took
place in some distros for architectures such as s390x, while Fedora 26
x86_64 is at glibc 2.25, i.e. still uses open().
Signed-off-by: Michael Petlan <[email protected]>
Tested-by: Arnaldo Carvalho de Melo <[email protected]>
Tested-by: Thomas Richter <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]
Cc: Adrian Hunter <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Hendrik Brueckner <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Wang Nan <[email protected]>
LPU-Reference: [email protected]
Link: https://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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When we detect a different endianity we swap event before processing.
It's tricky for samples because we have no idea what's inside. We treat
it as an array of u64s, swap them and later on we swap back parts which
are different.
We mangle this way also the tracepoint raw data, which ends up in report
showing wrong data:
1.95% comm=Q^B pid=29285 prio=16777216 target_cpu=000
1.67% comm=l^B pid=0 prio=16777216 target_cpu=000
Luckily the traceevent library handles the endianity by itself (thank
you Steven!), so we can pass the RAW data directly in the other
endianity.
2.51% comm=beah-rhts-task pid=1175 prio=120 target_cpu=002
2.23% comm=kworker/0:0 pid=11566 prio=120 target_cpu=000
The fix is basically to swap back the raw data if different endianity is
detected.
Signed-off-by: Jiri Olsa <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Steven Rostedt <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
[ Add util/memswap.c to python-ext-sources to link missing mem_bswap_64() ]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Support the special characters escaped by '\' in parser. This allows
user to specify versions directly like below.
=====
# ./perf probe -x /lib64/libc-2.25.so malloc_get_state\\@GLIBC_2.2.5
Added new event:
probe_libc:malloc_get_state (on malloc_get_state@GLIBC_2.2.5 in /usr/lib64/libc-2.25.so)
You can now use it in all perf tools, such as:
perf record -e probe_libc:malloc_get_state -aR sleep 1
=====
Or, you can use separators in source filename, e.g.
=====
# ./perf probe -x /opt/test/a.out foo+bar.c:3
Semantic error :There is non-digit character in offset.
Error: Command Parse Error.
=====
Usually "+" in source file cause parser error, but
=====
# ./perf probe -x /opt/test/a.out foo\\+bar.c:4
Added new event:
probe_a:main (on @foo+bar.c:4 in /opt/test/a.out)
You can now use it in all perf tools, such as:
perf record -e probe_a:main -aR sleep 1
=====
escaped "\+" allows you to specify that.
Signed-off-by: Masami Hiramatsu <[email protected]>
Reviewed-by: Thomas Richter <[email protected]>
Acked-by: Ravi Bangoria <[email protected]>
Cc: Paul Clarke <[email protected]>
Cc: bhargavb <[email protected]>
Cc: [email protected]
Link: http://lkml.kernel.org/r/151309111236.18107.5634753157435343410.stgit@devbox
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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To support the special characters escaped by '\' in 'perf probe' event parser.
Signed-off-by: Masami Hiramatsu <[email protected]>
Reviewed-by: Thomas Richter <[email protected]>
Acked-by: Ravi Bangoria <[email protected]>
Cc: Paul Clarke <[email protected]>
Cc: bhargavb <[email protected]>
Cc: [email protected]
Link: http://lkml.kernel.org/r/151275052163.24652.18205979384585484358.stgit@devbox
[ Split from a larger patch ]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Commit d80406453ad4 ("perf symbols: Allow user probes on versioned
symbols") allows user to find default versioned symbols (with "@@") in
map. However, it did not enable normal versioned symbol (with "@") for
perf-probe. E.g.
=====
# ./perf probe -x /lib64/libc-2.25.so malloc_get_state
Failed to find symbol malloc_get_state in /usr/lib64/libc-2.25.so
Error: Failed to add events.
=====
This solves above issue by improving perf-probe symbol search function,
as below.
=====
# ./perf probe -x /lib64/libc-2.25.so malloc_get_state
Added new event:
probe_libc:malloc_get_state (on malloc_get_state in /usr/lib64/libc-2.25.so)
You can now use it in all perf tools, such as:
perf record -e probe_libc:malloc_get_state -aR sleep 1
# ./perf probe -l
probe_libc:malloc_get_state (on malloc_get_state@GLIBC_2.2.5 in /usr/lib64/libc-2.25.so)
=====
Signed-off-by: Masami Hiramatsu <[email protected]>
Reviewed-by: Thomas Richter <[email protected]>
Acked-by: Ravi Bangoria <[email protected]>
Tested-by: Arnaldo Carvalho de Melo <[email protected]>
Cc: Paul Clarke <[email protected]>
Cc: bhargavb <[email protected]>
Cc: [email protected]
Link: http://lkml.kernel.org/r/151275049269.24652.1639103455496216255.stgit@devbox
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Add __return suffix for function return events automatically. Without
this, user have to give --force option and will see the number suffix
for each event like "function_1", which is not easy to recognize.
Instead, this adds __return suffix to it automatically. E.g.
=====
# ./perf probe -x /lib64/libc-2.25.so 'malloc*%return'
Added new events:
probe_libc:malloc_printerr__return (on malloc*%return in /usr/lib64/libc-2.25.so)
probe_libc:malloc_consolidate__return (on malloc*%return in /usr/lib64/libc-2.25.so)
probe_libc:malloc_check__return (on malloc*%return in /usr/lib64/libc-2.25.so)
probe_libc:malloc_hook_ini__return (on malloc*%return in /usr/lib64/libc-2.25.so)
probe_libc:malloc__return (on malloc*%return in /usr/lib64/libc-2.25.so)
probe_libc:malloc_trim__return (on malloc*%return in /usr/lib64/libc-2.25.so)
probe_libc:malloc_usable_size__return (on malloc*%return in /usr/lib64/libc-2.25.so)
probe_libc:malloc_stats__return (on malloc*%return in /usr/lib64/libc-2.25.so)
probe_libc:malloc_info__return (on malloc*%return in /usr/lib64/libc-2.25.so)
probe_libc:mallochook__return (on malloc*%return in /usr/lib64/libc-2.25.so)
probe_libc:malloc_get_state__return (on malloc*%return in /usr/lib64/libc-2.25.so)
probe_libc:malloc_set_state__return (on malloc*%return in /usr/lib64/libc-2.25.so)
You can now use it in all perf tools, such as:
perf record -e probe_libc:malloc_set_state__return -aR sleep 1
=====
Reported-by: Arnaldo Carvalho de Melo <[email protected]>
Signed-off-by: Masami Hiramatsu <[email protected]>
Acked-by: Ravi Bangoria <[email protected]>
Reviewed-by: Thomas Richter <[email protected]>
Tested-by: Arnaldo Carvalho de Melo <[email protected]>
Cc: Paul Clarke <[email protected]>
Cc: bhargavb <[email protected]>
Cc: [email protected]
Link: http://lkml.kernel.org/r/151275046418.24652.6696011972866498489.stgit@devbox
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Cut off the version suffix (e.g. @GLIBC_2.2.5 etc.) from automatic
generated event name. This fixes wildcard event adding like below case;
=====
# perf probe -x /lib64/libc-2.25.so malloc*
Internal error: "malloc_get_state@GLIBC_2" is wrong event name.
Error: Failed to add events.
=====
This failure was caused by a versioned suffix symbol.
With this fix, perf probe automatically cuts the suffix after @ as
below.
=====
# ./perf probe -x /lib64/libc-2.25.so malloc*
Added new events:
probe_libc:malloc_printerr (on malloc* in /usr/lib64/libc-2.25.so)
probe_libc:malloc_consolidate (on malloc* in /usr/lib64/libc-2.25.so)
probe_libc:malloc_check (on malloc* in /usr/lib64/libc-2.25.so)
probe_libc:malloc_hook_ini (on malloc* in /usr/lib64/libc-2.25.so)
probe_libc:malloc (on malloc* in /usr/lib64/libc-2.25.so)
probe_libc:malloc_trim (on malloc* in /usr/lib64/libc-2.25.so)
probe_libc:malloc_usable_size (on malloc* in /usr/lib64/libc-2.25.so)
probe_libc:malloc_stats (on malloc* in /usr/lib64/libc-2.25.so)
probe_libc:malloc_info (on malloc* in /usr/lib64/libc-2.25.so)
probe_libc:mallochook (on malloc* in /usr/lib64/libc-2.25.so)
probe_libc:malloc_get_state (on malloc* in /usr/lib64/libc-2.25.so)
probe_libc:malloc_set_state (on malloc* in /usr/lib64/libc-2.25.so)
You can now use it in all perf tools, such as:
perf record -e probe_libc:malloc_set_state -aR sleep 1
=====
Reported-by: Arnaldo Carvalho de Melo <[email protected]>
Reported-by: bhargavb <[email protected]>
Signed-off-by: Masami Hiramatsu <[email protected]>
Acked-by: Ravi Bangoria <[email protected]>
Reviewed-by: Thomas Richter <[email protected]>
Tested-by: Arnaldo Carvalho de Melo <[email protected]>
Cc: Paul Clarke <[email protected]>
Cc: [email protected]
Link: http://lkml.kernel.org/r/None
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
This improve the error message so that user can know event-name error
before writing new events to kprobe-events interface.
E.g.
======
#./perf probe -x /lib64/libc-2.25.so malloc_get_state*
Internal error: "malloc_get_state@GLIBC_2" is an invalid event name.
Error: Failed to add events.
======
Reported-by: Arnaldo Carvalho de Melo <[email protected]>
Signed-off-by: Masami Hiramatsu <[email protected]>
Acked-by: Ravi Bangoria <[email protected]>
Reviewed-by: Thomas Richter <[email protected]>
Tested-by: Arnaldo Carvalho de Melo <[email protected]>
Cc: Paul Clarke <[email protected]>
Cc: bhargavb <[email protected]>
Cc: [email protected]
Link: http://lkml.kernel.org/r/151275040665.24652.5188568529237584489.stgit@devbox
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
And use it in the libunwind case, with both passing a valid perf_env to
extract the arch to be normalized from and passing NULL with the same
semantic as in the annotate code: to get it from uname() uts.machine.
Now the code to generate per arch errno translation tables (int/string)
can use it to decode perf.data files recorded in a different arch than
that where 'perf trace' (or any other analysis tool) runs.
Cc: Adrian Hunter <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Hendrik Brueckner <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Michael Petlan <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Thomas Richter <[email protected]>
Cc: Wang Nan <[email protected]>
Link: https://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Paving the way to reuse these routines in other areas, like when
generating errno tables.
Cc: Adrian Hunter <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Hendrik Brueckner <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Michael Petlan <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Thomas Richter <[email protected]>
Cc: Wang Nan <[email protected]>
Link: https://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
To reduce its function signature, since we get this from 'evsel' which
is already one of its arguments.
Cc: Adrian Hunter <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Hendrik Brueckner <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Michael Petlan <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Thomas Richter <[email protected]>
Cc: Wang Nan <[email protected]>
Link: https://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
This should speed up accessing new system calls introduced with the
kernel rather than waiting for libaudit updates to include them.
It also enables users to specify wildcards, for example, perf trace -e
'open*', just like was already possible on x86.
Signed-off-by: Hendrik Brueckner <[email protected]>
Reviewed-by: Thomas Richter <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Michael Petlan <[email protected]>
Cc: [email protected]
LPU-Reference: [email protected]
Link: https://lkml.kernel.org/n/[email protected]
[ split from a larger patch ]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
This should speed up accessing new system calls introduced with
the kernel rather than waiting for libaudit updates to include
them.
Committer testing:
$ rm -rf /tmp/build/perf
$ mkdir /tmp/build/perf
$ make srctree=/home/acme/git/perf -C tools/perf/arch/s390 OUTPUT=/tmp/build/perf/ archheaders
make: Entering directory '/home/acme/git/perf/tools/perf/arch/s390'
/bin/sh '/home/acme/git/perf/tools/perf/arch/s390/entry/syscalls//mksyscalltbl' 'cc' /home/acme/git/perf/tools/arch/s390/include/uapi/asm/unistd.h > /tmp/build/perf/arch/s390/include/generated/asm/syscalls_64.c
make: Leaving directory '/home/acme/git/perf/tools/perf/arch/s390'
$ head -5 /tmp/build/perf/arch/s390/include/generated/asm/syscalls_64.c
static const char *syscalltbl_s390_64[] = {
[1] = "exit",
[2] = "fork",
[3] = "read",
[4] = "write",
$ tail -5 /tmp/build/perf/arch/s390/include/generated/asm/syscalls_64.c
[378] = "s390_guarded_storage",
[379] = "statx",
[380] = "s390_sthyi",
};
#define SYSCALLTBL_S390_64_MAX_ID 380
$
Now to plug this into 'perf trace' proper.
Signed-off-by: Hendrik Brueckner <[email protected]>
Reviewed-by: Thomas Richter <[email protected]>
Tested-by: Arnaldo Carvalho de Melo <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Michael Petlan <[email protected]>
Cc: [email protected]
LPU-Reference: [email protected]
Link: https://lkml.kernel.org/n/[email protected]
[ split from a larger patch ]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Will be used for generating the syscall id/string translation table.
Signed-off-by: Hendrik Brueckner <[email protected]>
Reviewed-by: Thomas Richter <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Michael Petlan <[email protected]>
Cc: [email protected]
LPU-Reference: [email protected]
Link: https://lkml.kernel.org/n/[email protected]
[ split from a larger patch ]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
These duplicate includes have been found with scripts/checkincludes.pl
but they have been removed manually to avoid removing false positives.
Signed-off-by: Pravin Shedge <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Some system can return DT_UNKNOWN in readdir's struct dirent::d_type and
we must handle it properly. In this case we can directly check if the
entity we found is directory and skip it.
Reported-by: Michael Petlan <[email protected]>
Signed-off-by: Jiri Olsa <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
[ Split from a larger patch ]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
So that it can be used more widely, like in the next patch, when it will
be used to fix a bug in 'perf test' handling of dirent.d_type ==
DT_UNKNOWN.
Signed-off-by: Jiri Olsa <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Michael Petlan <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
[ Split from a larger patch, removed needless includes in path.h ]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
There are many threads reported if we enable '--per-thread'
globally.
1. Most of the threads are not counted or counting value 0.
This patch removes these threads.
2. We also resort the threads in display according to the
counting value. It's useful for user to see the hottest
threads easily.
For example, the new results would be:
root@skl:/tmp# perf stat --per-thread
^C
Performance counter stats for 'system wide':
perf-24165 4.302433 cpu-clock (msec) # 0.001 CPUs utilized
vmstat-23127 1.562215 cpu-clock (msec) # 0.000 CPUs utilized
irqbalance-2780 0.827851 cpu-clock (msec) # 0.000 CPUs utilized
sshd-23111 0.278308 cpu-clock (msec) # 0.000 CPUs utilized
thermald-2841 0.230880 cpu-clock (msec) # 0.000 CPUs utilized
sshd-23058 0.207306 cpu-clock (msec) # 0.000 CPUs utilized
kworker/0:2-19991 0.133983 cpu-clock (msec) # 0.000 CPUs utilized
kworker/u16:1-18249 0.125636 cpu-clock (msec) # 0.000 CPUs utilized
rcu_sched-8 0.085533 cpu-clock (msec) # 0.000 CPUs utilized
kworker/u16:2-23146 0.077139 cpu-clock (msec) # 0.000 CPUs utilized
gmain-2700 0.041789 cpu-clock (msec) # 0.000 CPUs utilized
kworker/4:1-15354 0.028370 cpu-clock (msec) # 0.000 CPUs utilized
kworker/6:0-17528 0.023895 cpu-clock (msec) # 0.000 CPUs utilized
kworker/4:1H-1887 0.013209 cpu-clock (msec) # 0.000 CPUs utilized
kworker/5:2-31362 0.011627 cpu-clock (msec) # 0.000 CPUs utilized
watchdog/0-11 0.010892 cpu-clock (msec) # 0.000 CPUs utilized
kworker/3:2-12870 0.010220 cpu-clock (msec) # 0.000 CPUs utilized
ksoftirqd/0-7 0.008869 cpu-clock (msec) # 0.000 CPUs utilized
watchdog/1-14 0.008476 cpu-clock (msec) # 0.000 CPUs utilized
watchdog/7-50 0.002944 cpu-clock (msec) # 0.000 CPUs utilized
watchdog/3-26 0.002893 cpu-clock (msec) # 0.000 CPUs utilized
watchdog/4-32 0.002759 cpu-clock (msec) # 0.000 CPUs utilized
watchdog/2-20 0.002429 cpu-clock (msec) # 0.000 CPUs utilized
watchdog/6-44 0.001491 cpu-clock (msec) # 0.000 CPUs utilized
watchdog/5-38 0.001477 cpu-clock (msec) # 0.000 CPUs utilized
rcu_sched-8 10 context-switches # 0.117 M/sec
kworker/u16:1-18249 7 context-switches # 0.056 M/sec
sshd-23111 4 context-switches # 0.014 M/sec
vmstat-23127 4 context-switches # 0.003 M/sec
perf-24165 4 context-switches # 0.930 K/sec
kworker/0:2-19991 3 context-switches # 0.022 M/sec
kworker/u16:2-23146 3 context-switches # 0.039 M/sec
kworker/4:1-15354 2 context-switches # 0.070 M/sec
kworker/6:0-17528 2 context-switches # 0.084 M/sec
sshd-23058 2 context-switches # 0.010 M/sec
ksoftirqd/0-7 1 context-switches # 0.113 M/sec
watchdog/0-11 1 context-switches # 0.092 M/sec
watchdog/1-14 1 context-switches # 0.118 M/sec
watchdog/2-20 1 context-switches # 0.412 M/sec
watchdog/3-26 1 context-switches # 0.346 M/sec
watchdog/4-32 1 context-switches # 0.362 M/sec
watchdog/5-38 1 context-switches # 0.677 M/sec
watchdog/6-44 1 context-switches # 0.671 M/sec
watchdog/7-50 1 context-switches # 0.340 M/sec
kworker/4:1H-1887 1 context-switches # 0.076 M/sec
thermald-2841 1 context-switches # 0.004 M/sec
gmain-2700 1 context-switches # 0.024 M/sec
irqbalance-2780 1 context-switches # 0.001 M/sec
kworker/3:2-12870 1 context-switches # 0.098 M/sec
kworker/5:2-31362 1 context-switches # 0.086 M/sec
kworker/u16:1-18249 2 cpu-migrations # 0.016 M/sec
kworker/u16:2-23146 2 cpu-migrations # 0.026 M/sec
rcu_sched-8 1 cpu-migrations # 0.012 M/sec
sshd-23058 1 cpu-migrations # 0.005 M/sec
perf-24165 8,833,385 cycles # 2.053 GHz
vmstat-23127 1,702,699 cycles # 1.090 GHz
irqbalance-2780 739,847 cycles # 0.894 GHz
sshd-23111 269,506 cycles # 0.968 GHz
thermald-2841 204,556 cycles # 0.886 GHz
sshd-23058 158,780 cycles # 0.766 GHz
kworker/0:2-19991 112,981 cycles # 0.843 GHz
kworker/u16:1-18249 100,926 cycles # 0.803 GHz
rcu_sched-8 74,024 cycles # 0.865 GHz
kworker/u16:2-23146 55,984 cycles # 0.726 GHz
gmain-2700 34,278 cycles # 0.820 GHz
kworker/4:1-15354 20,665 cycles # 0.728 GHz
kworker/6:0-17528 16,445 cycles # 0.688 GHz
kworker/5:2-31362 9,492 cycles # 0.816 GHz
watchdog/3-26 8,695 cycles # 3.006 GHz
kworker/4:1H-1887 8,238 cycles # 0.624 GHz
watchdog/4-32 7,580 cycles # 2.747 GHz
kworker/3:2-12870 7,306 cycles # 0.715 GHz
watchdog/2-20 7,274 cycles # 2.995 GHz
watchdog/0-11 6,988 cycles # 0.642 GHz
ksoftirqd/0-7 6,376 cycles # 0.719 GHz
watchdog/1-14 5,340 cycles # 0.630 GHz
watchdog/5-38 4,061 cycles # 2.749 GHz
watchdog/6-44 3,976 cycles # 2.667 GHz
watchdog/7-50 3,418 cycles # 1.161 GHz
vmstat-23127 2,511,699 instructions # 1.48 insn per cycle
perf-24165 1,829,908 instructions # 0.21 insn per cycle
irqbalance-2780 1,190,204 instructions # 1.61 insn per cycle
thermald-2841 143,544 instructions # 0.70 insn per cycle
sshd-23111 128,138 instructions # 0.48 insn per cycle
sshd-23058 57,654 instructions # 0.36 insn per cycle
rcu_sched-8 44,063 instructions # 0.60 insn per cycle
kworker/u16:1-18249 42,551 instructions # 0.42 insn per cycle
kworker/0:2-19991 25,873 instructions # 0.23 insn per cycle
kworker/u16:2-23146 21,407 instructions # 0.38 insn per cycle
gmain-2700 13,691 instructions # 0.40 insn per cycle
kworker/4:1-15354 12,964 instructions # 0.63 insn per cycle
kworker/6:0-17528 10,034 instructions # 0.61 insn per cycle
kworker/5:2-31362 5,203 instructions # 0.55 insn per cycle
kworker/3:2-12870 4,866 instructions # 0.67 insn per cycle
kworker/4:1H-1887 3,586 instructions # 0.44 insn per cycle
ksoftirqd/0-7 3,463 instructions # 0.54 insn per cycle
watchdog/0-11 3,135 instructions # 0.45 insn per cycle
watchdog/1-14 3,135 instructions # 0.59 insn per cycle
watchdog/2-20 3,135 instructions # 0.43 insn per cycle
watchdog/3-26 3,135 instructions # 0.36 insn per cycle
watchdog/4-32 3,135 instructions # 0.41 insn per cycle
watchdog/5-38 3,135 instructions # 0.77 insn per cycle
watchdog/6-44 3,135 instructions # 0.79 insn per cycle
watchdog/7-50 3,135 instructions # 0.92 insn per cycle
vmstat-23127 539,181 branches # 345.139 M/sec
perf-24165 375,364 branches # 87.245 M/sec
irqbalance-2780 262,092 branches # 316.593 M/sec
thermald-2841 31,611 branches # 136.915 M/sec
sshd-23111 21,874 branches # 78.596 M/sec
sshd-23058 10,682 branches # 51.528 M/sec
rcu_sched-8 8,693 branches # 101.633 M/sec
kworker/u16:1-18249 7,891 branches # 62.808 M/sec
kworker/0:2-19991 5,761 branches # 42.998 M/sec
kworker/u16:2-23146 4,099 branches # 53.138 M/sec
kworker/4:1-15354 2,755 branches # 97.110 M/sec
gmain-2700 2,638 branches # 63.127 M/sec
kworker/6:0-17528 2,216 branches # 92.739 M/sec
kworker/5:2-31362 1,132 branches # 97.360 M/sec
kworker/3:2-12870 1,081 branches # 105.773 M/sec
kworker/4:1H-1887 725 branches # 54.887 M/sec
ksoftirqd/0-7 707 branches # 79.716 M/sec
watchdog/0-11 652 branches # 59.860 M/sec
watchdog/1-14 652 branches # 76.923 M/sec
watchdog/2-20 652 branches # 268.423 M/sec
watchdog/3-26 652 branches # 225.372 M/sec
watchdog/4-32 652 branches # 236.318 M/sec
watchdog/5-38 652 branches # 441.435 M/sec
watchdog/6-44 652 branches # 437.290 M/sec
watchdog/7-50 652 branches # 221.467 M/sec
vmstat-23127 8,960 branch-misses # 1.66% of all branches
irqbalance-2780 3,047 branch-misses # 1.16% of all branches
perf-24165 2,876 branch-misses # 0.77% of all branches
sshd-23111 1,843 branch-misses # 8.43% of all branches
thermald-2841 1,444 branch-misses # 4.57% of all branches
sshd-23058 1,379 branch-misses # 12.91% of all branches
kworker/u16:1-18249 982 branch-misses # 12.44% of all branches
rcu_sched-8 893 branch-misses # 10.27% of all branches
kworker/u16:2-23146 578 branch-misses # 14.10% of all branches
kworker/0:2-19991 376 branch-misses # 6.53% of all branches
gmain-2700 280 branch-misses # 10.61% of all branches
kworker/6:0-17528 196 branch-misses # 8.84% of all branches
kworker/4:1-15354 187 branch-misses # 6.79% of all branches
kworker/5:2-31362 123 branch-misses # 10.87% of all branches
watchdog/0-11 95 branch-misses # 14.57% of all branches
watchdog/4-32 89 branch-misses # 13.65% of all branches
kworker/3:2-12870 80 branch-misses # 7.40% of all branches
watchdog/3-26 61 branch-misses # 9.36% of all branches
kworker/4:1H-1887 60 branch-misses # 8.28% of all branches
watchdog/2-20 52 branch-misses # 7.98% of all branches
ksoftirqd/0-7 47 branch-misses # 6.65% of all branches
watchdog/1-14 46 branch-misses # 7.06% of all branches
watchdog/7-50 13 branch-misses # 1.99% of all branches
watchdog/5-38 8 branch-misses # 1.23% of all branches
watchdog/6-44 7 branch-misses # 1.07% of all branches
3.695150786 seconds time elapsed
root@skl:/tmp# perf stat --per-thread -M IPC,CPI
^C
Performance counter stats for 'system wide':
vmstat-23127 2,000,783 inst_retired.any # 1.5 IPC
thermald-2841 1,472,670 inst_retired.any # 1.3 IPC
sshd-23111 977,374 inst_retired.any # 1.2 IPC
perf-24163 483,779 inst_retired.any # 0.2 IPC
gmain-2700 341,213 inst_retired.any # 0.9 IPC
sshd-23058 148,891 inst_retired.any # 0.8 IPC
rtkit-daemon-3288 71,210 inst_retired.any # 0.7 IPC
kworker/u16:1-18249 39,562 inst_retired.any # 0.3 IPC
rcu_sched-8 14,474 inst_retired.any # 0.8 IPC
kworker/0:2-19991 7,659 inst_retired.any # 0.2 IPC
kworker/4:1-15354 6,714 inst_retired.any # 0.8 IPC
rtkit-daemon-3289 4,839 inst_retired.any # 0.3 IPC
kworker/6:0-17528 3,321 inst_retired.any # 0.6 IPC
kworker/5:2-31362 3,215 inst_retired.any # 0.5 IPC
kworker/7:2-23145 3,173 inst_retired.any # 0.7 IPC
kworker/4:1H-1887 1,719 inst_retired.any # 0.3 IPC
watchdog/0-11 1,479 inst_retired.any # 0.3 IPC
watchdog/1-14 1,479 inst_retired.any # 0.3 IPC
watchdog/2-20 1,479 inst_retired.any # 0.4 IPC
watchdog/3-26 1,479 inst_retired.any # 0.4 IPC
watchdog/4-32 1,479 inst_retired.any # 0.3 IPC
watchdog/5-38 1,479 inst_retired.any # 0.3 IPC
watchdog/6-44 1,479 inst_retired.any # 0.7 IPC
watchdog/7-50 1,479 inst_retired.any # 0.7 IPC
kworker/u16:2-23146 1,408 inst_retired.any # 0.5 IPC
perf-24163 2,249,872 cpu_clk_unhalted.thread
vmstat-23127 1,352,455 cpu_clk_unhalted.thread
thermald-2841 1,161,140 cpu_clk_unhalted.thread
sshd-23111 807,827 cpu_clk_unhalted.thread
gmain-2700 375,535 cpu_clk_unhalted.thread
sshd-23058 194,071 cpu_clk_unhalted.thread
kworker/u16:1-18249 114,306 cpu_clk_unhalted.thread
rtkit-daemon-3288 103,547 cpu_clk_unhalted.thread
kworker/0:2-19991 46,550 cpu_clk_unhalted.thread
rcu_sched-8 18,855 cpu_clk_unhalted.thread
rtkit-daemon-3289 17,549 cpu_clk_unhalted.thread
kworker/4:1-15354 8,812 cpu_clk_unhalted.thread
kworker/5:2-31362 6,812 cpu_clk_unhalted.thread
kworker/4:1H-1887 5,270 cpu_clk_unhalted.thread
kworker/6:0-17528 5,111 cpu_clk_unhalted.thread
kworker/7:2-23145 4,667 cpu_clk_unhalted.thread
watchdog/0-11 4,663 cpu_clk_unhalted.thread
watchdog/1-14 4,663 cpu_clk_unhalted.thread
watchdog/4-32 4,626 cpu_clk_unhalted.thread
watchdog/5-38 4,403 cpu_clk_unhalted.thread
watchdog/3-26 3,936 cpu_clk_unhalted.thread
watchdog/2-20 3,850 cpu_clk_unhalted.thread
kworker/u16:2-23146 2,654 cpu_clk_unhalted.thread
watchdog/6-44 2,017 cpu_clk_unhalted.thread
watchdog/7-50 2,017 cpu_clk_unhalted.thread
vmstat-23127 2,000,783 inst_retired.any # 0.7 CPI
thermald-2841 1,472,670 inst_retired.any # 0.8 CPI
sshd-23111 977,374 inst_retired.any # 0.8 CPI
perf-24163 495,037 inst_retired.any # 4.7 CPI
gmain-2700 341,213 inst_retired.any # 1.1 CPI
sshd-23058 148,891 inst_retired.any # 1.3 CPI
rtkit-daemon-3288 71,210 inst_retired.any # 1.5 CPI
kworker/u16:1-18249 39,562 inst_retired.any # 2.9 CPI
rcu_sched-8 14,474 inst_retired.any # 1.3 CPI
kworker/0:2-19991 7,659 inst_retired.any # 6.1 CPI
kworker/4:1-15354 6,714 inst_retired.any # 1.3 CPI
rtkit-daemon-3289 4,839 inst_retired.any # 3.6 CPI
kworker/6:0-17528 3,321 inst_retired.any # 1.5 CPI
kworker/5:2-31362 3,215 inst_retired.any # 2.1 CPI
kworker/7:2-23145 3,173 inst_retired.any # 1.5 CPI
kworker/4:1H-1887 1,719 inst_retired.any # 3.1 CPI
watchdog/0-11 1,479 inst_retired.any # 3.2 CPI
watchdog/1-14 1,479 inst_retired.any # 3.2 CPI
watchdog/2-20 1,479 inst_retired.any # 2.6 CPI
watchdog/3-26 1,479 inst_retired.any # 2.7 CPI
watchdog/4-32 1,479 inst_retired.any # 3.1 CPI
watchdog/5-38 1,479 inst_retired.any # 3.0 CPI
watchdog/6-44 1,479 inst_retired.any # 1.4 CPI
watchdog/7-50 1,479 inst_retired.any # 1.4 CPI
kworker/u16:2-23146 1,408 inst_retired.any # 1.9 CPI
perf-24163 2,302,323 cycles
vmstat-23127 1,352,455 cycles
thermald-2841 1,161,140 cycles
sshd-23111 807,827 cycles
gmain-2700 375,535 cycles
sshd-23058 194,071 cycles
kworker/u16:1-18249 114,306 cycles
rtkit-daemon-3288 103,547 cycles
kworker/0:2-19991 46,550 cycles
rcu_sched-8 18,855 cycles
rtkit-daemon-3289 17,549 cycles
kworker/4:1-15354 8,812 cycles
kworker/5:2-31362 6,812 cycles
kworker/4:1H-1887 5,270 cycles
kworker/6:0-17528 5,111 cycles
kworker/7:2-23145 4,667 cycles
watchdog/0-11 4,663 cycles
watchdog/1-14 4,663 cycles
watchdog/4-32 4,626 cycles
watchdog/5-38 4,403 cycles
watchdog/3-26 3,936 cycles
watchdog/2-20 3,850 cycles
kworker/u16:2-23146 2,654 cycles
watchdog/6-44 2,017 cycles
watchdog/7-50 2,017 cycles
2.175726600 seconds time elapsed
Signed-off-by: Jin Yao <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Currently, if we execute 'perf stat --per-thread' without specifying
pid/tid, perf will return error.
root@skl:/tmp# perf stat --per-thread
The --per-thread option is only available when monitoring via -p -t options.
-p, --pid <pid> stat events on existing process id
-t, --tid <tid> stat events on existing thread id
This patch removes this limitation. If no pid/tid specified, it returns
all threads (get threads from /proc).
Note that it doesn't support cpu_list yet so if it's a cpu_list case,
then skip.
Signed-off-by: Jin Yao <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
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This patch calls thread_map__new_all_cpus() to enumerate all threads
from /proc if per-thread flag is enabled.
Signed-off-by: Jin Yao <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
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If the stats pointer in stat_config structure is not null, it will
update the per-thread stats or print the per-thread stats on this
buffer.
Signed-off-by: Jin Yao <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
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After perf_evlist__create_maps() being executed, we can get all threads
from /proc. And via thread_map__nr(), we can also get the number of
threads.
With the number of threads, the patch allocates a buffer which will
record the shadow stats for these threads.
The buffer pointer is saved in stat_config.
Signed-off-by: Jin Yao <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
In previous patches, we have reconstructed the code and let it not
access the static variables directly.
This patch removes these static variables.
Signed-off-by: Jin Yao <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
[ Rename 'stat' variables to 'st' to build on centos:{5,6} and others where it shadows a global declaration ]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
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The function perf_stat__print_shadow_stats() is called to print the
shadow stats on a set of static variables.
But the static variables are the limitations to support
per-thread shadow stats.
This patch lets the perf_stat__print_shadow_stats() support
to print the shadow stats from a input parameter 'st'.
It will not directly get value from static variable. Instead,
it now uses runtime_stat_avg() and runtime_stat_n() to get and
compute the values.
Signed-off-by: Jin Yao <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
[ Rename 'stat' variables to 'st' to build on centos:{5,6} and others where it shadows a global declaration ]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
The functions perf_stat__update_shadow_stats() is called to update the
shadow stats on a set of static variables.
But the static variables are the limitations to be extended to support
per-thread shadow stats.
This patch lets the perf_stat__update_shadow_stats() support to update
the shadow stats on a input parameter 'st' and uses
update_runtime_stat() to update the stats. It will not directly update
the static variables as before.
Signed-off-by: Jin Yao <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
[ Rename 'stat' variables to 'st' to build on centos:{5,6} and others where it shadows a global declaration ]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
It mainly initializes and releases the rblist which is defined in struct
runtime_stat.
For the original rblist 'runtime_saved_values', it's still kept there
for keeping the patch bisectable.
The rblist 'runtime_saved_values' will be removed in later patch at
switching time.
Signed-off-by: Jin Yao <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
[ Rename 'stat' variables to 'st' to build on centos:{5,6} and others where it shadows a global declaration ]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Previously the rbtree was used to link generic metrics.
This patches adds new ctx/type/stat into rbtree keys because we will use
this rbtree to maintain shadow metrics to replace original a couple of
static arrays for supporting per-thread shadow stats.
Signed-off-by: Jin Yao <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Perf has a set of static variables to record the runtime shadow metrics
stats.
While if we want to record the runtime shadow stats for per-thread, it
will be the limitation. This patch creates a structure and the next
patches will use this structure to update the runtime shadow stats for
per-thread.
Signed-off-by: Jin Yao <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Now that the LDT mapping is in a known area when PAGE_TABLE_ISOLATION is
enabled its a primary target for attacks, if a user space interface fails
to validate a write address correctly. That can never happen, right?
The SDM states:
If the segment descriptors in the GDT or an LDT are placed in ROM, the
processor can enter an indefinite loop if software or the processor
attempts to update (write to) the ROM-based segment descriptors. To
prevent this problem, set the accessed bits for all segment descriptors
placed in a ROM. Also, remove operating-system or executive code that
attempts to modify segment descriptors located in ROM.
So its a valid approach to set the ACCESS bit when setting up the LDT entry
and to map the table RO. Fixup the selftest so it can handle that new mode.
Remove the manual ACCESS bit setter in set_tls_desc() as this is now
pointless. Folded the patch from Peter Ziljstra.
Signed-off-by: Thomas Gleixner <[email protected]>
Cc: Andy Lutomirski <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Dave Hansen <[email protected]>
Cc: H. Peter Anvin <[email protected]>
Cc: Josh Poimboeuf <[email protected]>
Cc: Juergen Gross <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 PTI preparatory patches from Thomas Gleixner:
"Todays Advent calendar window contains twentyfour easy to digest
patches. The original plan was to have twenty three matching the date,
but a late fixup made that moot.
- Move the cpu_entry_area mapping out of the fixmap into a separate
address space. That's necessary because the fixmap becomes too big
with NRCPUS=8192 and this caused already subtle and hard to
diagnose failures.
The top most patch is fresh from today and cures a brain slip of
that tall grumpy german greybeard, who ignored the intricacies of
32bit wraparounds.
- Limit the number of CPUs on 32bit to 64. That's insane big already,
but at least it's small enough to prevent address space issues with
the cpu_entry_area map, which have been observed and debugged with
the fixmap code
- A few TLB flush fixes in various places plus documentation which of
the TLB functions should be used for what.
- Rename the SYSENTER stack to CPU_ENTRY_AREA stack as it is used for
more than sysenter now and keeping the name makes backtraces
confusing.
- Prevent LDT inheritance on exec() by moving it to arch_dup_mmap(),
which is only invoked on fork().
- Make vysycall more robust.
- A few fixes and cleanups of the debug_pagetables code. Check
PAGE_PRESENT instead of checking the PTE for 0 and a cleanup of the
C89 initialization of the address hint array which already was out
of sync with the index enums.
- Move the ESPFIX init to a different place to prepare for PTI.
- Several code moves with no functional change to make PTI
integration simpler and header files less convoluted.
- Documentation fixes and clarifications"
* 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (24 commits)
x86/cpu_entry_area: Prevent wraparound in setup_cpu_entry_area_ptes() on 32bit
init: Invoke init_espfix_bsp() from mm_init()
x86/cpu_entry_area: Move it out of the fixmap
x86/cpu_entry_area: Move it to a separate unit
x86/mm: Create asm/invpcid.h
x86/mm: Put MMU to hardware ASID translation in one place
x86/mm: Remove hard-coded ASID limit checks
x86/mm: Move the CR3 construction functions to tlbflush.h
x86/mm: Add comments to clarify which TLB-flush functions are supposed to flush what
x86/mm: Remove superfluous barriers
x86/mm: Use __flush_tlb_one() for kernel memory
x86/microcode: Dont abuse the TLB-flush interface
x86/uv: Use the right TLB-flush API
x86/entry: Rename SYSENTER_stack to CPU_ENTRY_AREA_entry_stack
x86/doc: Remove obvious weirdnesses from the x86 MM layout documentation
x86/mm/64: Improve the memory map documentation
x86/ldt: Prevent LDT inheritance on exec
x86/ldt: Rework locking
arch, mm: Allow arch_dup_mmap() to fail
x86/vsyscall/64: Warn and fail vsyscall emulation in NATIVE mode
...
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On program/map show we may get an ID of an object from GETNEXT,
but the object may disappear before we call GET_FD_BY_ID. If
that happens, ignore the object and continue.
Fixes: 71bb428fe2c1 ("tools: bpf: add bpftool")
Signed-off-by: Jakub Kicinski <[email protected]>
Acked-by: Quentin Monnet <[email protected]>
Signed-off-by: Daniel Borkmann <[email protected]>
|
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We can't return from the middle of do_show(), because
json_array will not be closed. Break out of the loop.
Note that the error handling after the loop depends on
errno, so no need to set err.
Fixes: 831a0aafe5c3 ("tools: bpftool: add JSON output for `bpftool map *` commands")
Signed-off-by: Jakub Kicinski <[email protected]>
Acked-by: Quentin Monnet <[email protected]>
Signed-off-by: Daniel Borkmann <[email protected]>
|
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The LDT is inherited across fork() or exec(), but that makes no sense
at all because exec() is supposed to start the process clean.
The reason why this happens is that init_new_context_ldt() is called from
init_new_context() which obviously needs to be called for both fork() and
exec().
It would be surprising if anything relies on that behaviour, so it seems to
be safe to remove that misfeature.
Split the context initialization into two parts. Clear the LDT pointer and
initialize the mutex from the general context init and move the LDT
duplication to arch_dup_mmap() which is only called on fork().
Signed-off-by: Thomas Gleixner <[email protected]>
Signed-off-by: Peter Zijlstra <[email protected]>
Cc: Andy Lutomirski <[email protected]>
Cc: Andy Lutomirsky <[email protected]>
Cc: Boris Ostrovsky <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Brian Gerst <[email protected]>
Cc: Dave Hansen <[email protected]>
Cc: Dave Hansen <[email protected]>
Cc: David Laight <[email protected]>
Cc: Denys Vlasenko <[email protected]>
Cc: Eduardo Valentin <[email protected]>
Cc: Greg KH <[email protected]>
Cc: H. Peter Anvin <[email protected]>
Cc: Josh Poimboeuf <[email protected]>
Cc: Juergen Gross <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Will Deacon <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Signed-off-by: Ingo Molnar <[email protected]>
|
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Pull networking fixes from David Miller"
"What's a holiday weekend without some networking bug fixes? [1]
1) Fix some eBPF JIT bugs wrt. SKB pointers across helper function
calls, from Daniel Borkmann.
2) Fix regression from errata limiting change to marvell PHY driver,
from Zhao Qiang.
3) Fix u16 overflow in SCTP, from Xin Long.
4) Fix potential memory leak during bridge newlink, from Nikolay
Aleksandrov.
5) Fix BPF selftest build on s390, from Hendrik Brueckner.
6) Don't append to cfg80211 automatically generated certs file,
always write new ones from scratch. From Thierry Reding.
7) Fix sleep in atomic in mac80211 hwsim, from Jia-Ju Bai.
8) Fix hang on tg3 MTU change with certain chips, from Brian King.
9) Add stall detection to arc emac driver and reset chip when this
happens, from Alexander Kochetkov.
10) Fix MTU limitng in GRE tunnel drivers, from Xin Long.
11) Fix stmmac timestamping bug due to mis-shifting of field. From
Fredrik Hallenberg.
12) Fix metrics match when deleting an ipv4 route. The kernel sets
some internal metrics bits which the user isn't going to set when
it makes the delete request. From Phil Sutter.
13) mvneta driver loop over RX queues limits on "txq_number" :-) Fix
from Yelena Krivosheev.
14) Fix double free and memory corruption in get_net_ns_by_id, from
Eric W. Biederman.
15) Flush ipv4 FIB tables in the reverse order. Some tables can share
their actual backing data, in particular this happens for the MAIN
and LOCAL tables. We have to kill the LOCAL table first, because
it uses MAIN's backing memory. Fix from Ido Schimmel.
16) Several eBPF verifier value tracking fixes, from Edward Cree, Jann
Horn, and Alexei Starovoitov.
17) Make changes to ipv6 autoflowlabel sysctl really propagate to
sockets, unless the socket has set the per-socket value
explicitly. From Shaohua Li.
18) Fix leaks and double callback invocations of zerocopy SKBs, from
Willem de Bruijn"
[1] Is this a trick question? "Relaxing"? "Quiet"? "Fine"? - Linus.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (77 commits)
skbuff: skb_copy_ubufs must release uarg even without user frags
skbuff: orphan frags before zerocopy clone
net: reevalulate autoflowlabel setting after sysctl setting
openvswitch: Fix pop_vlan action for double tagged frames
ipv6: Honor specified parameters in fibmatch lookup
bpf: do not allow root to mangle valid pointers
selftests/bpf: add tests for recent bugfixes
bpf: fix integer overflows
bpf: don't prune branches when a scalar is replaced with a pointer
bpf: force strict alignment checks for stack pointers
bpf: fix missing error return in check_stack_boundary()
bpf: fix 32-bit ALU op verification
bpf: fix incorrect tracking of register size truncation
bpf: fix incorrect sign extension in check_alu_op()
bpf/verifier: fix bounds calculation on BPF_RSH
ipv4: Fix use-after-free when flushing FIB tables
s390/qeth: fix error handling in checksum cmd callback
tipc: remove joining group member from congested list
selftests: net: Adding config fragment CONFIG_NUMA=y
nfp: bpf: keep track of the offloaded program
...
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Makefile has a LLC variable that is initialised to "llc", but can
theoretically be overridden from the command line ("make LLC=llc-6.0").
However, this fails because for LLVM probe check, "llc" is called
directly. Use the $(LLC) variable instead to fix this.
Fixes: 22c8852624fc ("bpf: improve selftests and add tests for meta pointer")
Signed-off-by: Quentin Monnet <[email protected]>
Signed-off-by: Jakub Kicinski <[email protected]>
Signed-off-by: Daniel Borkmann <[email protected]>
|
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Pull KVM fixes from Paolo Bonzini:
"ARM fixes:
- A bug in handling of SPE state for non-vhe systems
- A fix for a crash on system shutdown
- Three timer fixes, introduced by the timer optimizations for v4.15
x86 fixes:
- fix for a WARN that was introduced in 4.15
- fix for SMM when guest uses PCID
- fixes for several bugs found by syzkaller
... and a dozen papercut fixes for the kvm_stat tool"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (22 commits)
tools/kvm_stat: sort '-f help' output
kvm: x86: fix RSM when PCID is non-zero
KVM: Fix stack-out-of-bounds read in write_mmio
KVM: arm/arm64: Fix timer enable flow
KVM: arm/arm64: Properly handle arch-timer IRQs after vtimer_save_state
KVM: arm/arm64: timer: Don't set irq as forwarded if no usable GIC
KVM: arm/arm64: Fix HYP unmapping going off limits
arm64: kvm: Prevent restoring stale PMSCR_EL1 for vcpu
KVM/x86: Check input paging mode when cs.l is set
tools/kvm_stat: add line for totals
tools/kvm_stat: stop ignoring unhandled arguments
tools/kvm_stat: suppress usage information on command line errors
tools/kvm_stat: handle invalid regular expressions
tools/kvm_stat: add hint on '-f help' to man page
tools/kvm_stat: fix child trace events accounting
tools/kvm_stat: fix extra handling of 'help' with fields filter
tools/kvm_stat: fix missing field update after filter change
tools/kvm_stat: fix drilldown in events-by-guests mode
tools/kvm_stat: fix command line option '-g'
kvm: x86: fix WARN due to uninitialized guest FPU state
...
|
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Sort the fields returned by specifying '-f help' on the command line.
While at it, simplify the code a bit, indent the output and eliminate an
extra blank line at the beginning.
Signed-off-by: Stefan Raspl <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]>
|