| Age | Commit message (Collapse) | Author | Files | Lines |
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Extend the sample-parsing test to include a branch_flag bitfield-endian
swap test.
This patch adds a include for "util/trace-event.h" in the sample-parsing
test for importing tep_is_bigendian() and extends samples_same() to
include "needs_swap" to detect/enable check for bitfield-endian swap.
Signed-off-by: Madhavan Srinivasan <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Cc: Athira Jajeev <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Stephane Eranian <[email protected]>
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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The branch_stack struct has bit field definition which produces
different bit ordering for big/little endian.
Because of this, when branch_stack sample is collected in a BE system
and viewed/reported in a LE system, bit fields of the branch stack are
not presented properly.
To address this issue, a evsel__bitfield_swap_branch_stack() is defined
and introduced in evsel__parse_sample.
Signed-off-by: Madhavan Srinivasan <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Cc: Athira Jajeev <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Stephane Eranian <[email protected]>
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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The instruction latency information can be recorded on
some platforms, e.g., the Intel Sapphire Rapids server. With both memory
latency (weight) and the new instruction latency information, users can
easily locate the expensive load instructions, and also understand the time
spent in different stages. The users can optimize their applications in
different pipeline stages.
Add a new field "ins_lat" to filter the instruction latency information,
which is available with sample type PERF_SAMPLE_WEIGHT_STRUCT.
Signed-off-by: Kan Liang <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Joe Mario <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Show binary offsets for userspace addr with map in perf script output
with callchain.
In commit 19610184693c("perf script: Show virtual addresses instead of
offsets"), the addr shown in perf script output with callchain is changed
from binary offsets to virtual address to fix the incorrectness when
displaying symbol offset.
This is inconvenient in scenario that the binary is stripped and
symbol cannot be resolved. If someone wants to further resolve symbols for
specific binaries later, he would need an extra step to translate virtual
address to binary offset with mapping information recorded in perf.data,
which can be difficult for people not familiar with perf.
This patch modifies function sample__fprintf_callchain to print binary
offset for userspace addr with dsos, and virtual address otherwise. It
does not affect symbol offset calculation so symoff remains correct.
Before applying this patch:
test 1512 78.711307: 533129 cycles:
aaaae0da07f4 [unknown] (/tmp/test)
aaaae0da0704 [unknown] (/tmp/test)
ffffbe9f7ef4 __libc_start_main+0xe4 (/lib64/libc-2.31.so)
After this patch:
test 1519 111.330127: 406953 cycles:
7f4 [unknown] (/tmp/test)
704 [unknown] (/tmp/test)
20ef4 __libc_start_main+0xe4 (/lib64/libc-2.31.so)
Fixes: 19610184693c("perf script: Show virtual addresses instead of offsets")
Signed-off-by: Lexi Shao <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Tested-by: Jiri Olsa <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: QiuXi <[email protected]>
Cc: Wangbing <[email protected]>
Cc: Xiaoming Ni <[email protected]>
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Some 32-bit architectures (such are 32-bit RISC-V) only have a 64-bit
time_t and as such don't have the SYS_futex syscall. This patch will
allow us to use the SYS_futex_time64 syscall on those platforms.
This also converts the futex calls to be y2038 safe (when built for a
5.1+ kernel).
Signed-off-by: Alistair Francis <[email protected]>
Reviewed-by: Arnd Bergmann <[email protected]>
Acked-by: Davidlohr Bueso <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Alistair Francis <[email protected]>
Cc: Atish Patra <[email protected]>
Cc: Darren Hart <[email protected]>
Cc: Davidlohr Bueso <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: [email protected]
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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In preparation for a more complex futex() function let's convert the
current macro into two functions. We need two functions to avoid
compiler failures as the macro is overloaded.
This will allow us to include pre-processor conditionals in the futex
syscall functions.
Signed-off-by: Alistair Francis <[email protected]>
Acked-by: Davidlohr Bueso <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Alistair Francis <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: Atish Patra <[email protected]>
Cc: Darren Hart <[email protected]>
Cc: Davidlohr Bueso <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: [email protected]
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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It can be useful to see debug output in between normal output.
Add support for AUXTRACE_LOG_FLG_USE_STDOUT to Intel PT.
Reviewed-by: Andi Kleen <[email protected]>
Signed-off-by: Adrian Hunter <[email protected]>
Cc: Jiri Olsa <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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It can be useful to see debug output in between normal output.
Add 'o' to the flags of debug option 'd', so that '--itrace=d+o' can
specify output of the debug log to stdout.
Reviewed-by: Andi Kleen <[email protected]>
Signed-off-by: Adrian Hunter <[email protected]>
Cc: Jiri Olsa <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Add a new dlfilter to show cycles.
Cycle counts are accumulated per CPU (or per thread if CPU is not recorded)
from IPC information, and printed together with the change since the last
print, at the start of each line. Separate counts are kept for branches,
instructions or other events.
Note also, the itrace A option can be useful to provide higher granularity
cycle information.
Example:
$ perf record -e intel_pt/cyc/u uname
Linux
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.044 MB perf.data ]
$ perf script --itrace=A --call-trace --dlfilter dlfilter-show-cycles.so --deltatime | head
0 perf-exec 8509 [001] 0.000000000: psb offs: 0
0 perf-exec 8509 [001] 0.000000000: cbr: 42 freq: 4219 MHz (156%)
833 833 uname 8509 [001] 0.000047689: (/usr/lib/x86_64-linux-gnu/ld-2.31.so ) _start
833 uname 8509 [001] 0.000003261: (/usr/lib/x86_64-linux-gnu/ld-2.31.so ) _dl_start
2015 1182 uname 8509 [001] 0.000000282: (/usr/lib/x86_64-linux-gnu/ld-2.31.so ) _dl_start
2676 661 uname 8509 [001] 0.000002629: (/usr/lib/x86_64-linux-gnu/ld-2.31.so ) _dl_start
3612 936 uname 8509 [001] 0.000001232: (/usr/lib/x86_64-linux-gnu/ld-2.31.so ) _dl_start
4579 967 uname 8509 [001] 0.000002519: (/usr/lib/x86_64-linux-gnu/ld-2.31.so ) _dl_start
6145 1566 uname 8509 [001] 0.000001050: (/usr/lib/x86_64-linux-gnu/ld-2.31.so ) _dl_setup_hash
6239 94 uname 8509 [001] 0.000000023: (/usr/lib/x86_64-linux-gnu/ld-2.31.so ) _dl_sysdep_start
Reviewed-by: Andi Kleen <[email protected]>
Signed-off-by: Adrian Hunter <[email protected]>
Cc: Jiri Olsa <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Normally, for cycle-acccurate mode, IPC values are an exact number of
instructions and cycles. Due to the granularity of timestamps, that happens
only when a CYC packet correlates to the event.
Support the itrace 'A' option, to use instead, the number of cycles
associated with the current timestamp. This provides IPC information for
every change of timestamp, but at the expense of accuracy. Due to the
granularity of timestamps, the actual number of cycles increases even
though the cycles reported does not. The number of instructions is known,
but if IPC is reported, cycles can be too low and so IPC is too high. Note
that inaccuracy decreases as the period of sampling increases i.e. if the
number of cycles is too low by a small amount, that becomes less
significant if the number of cycles is large.
Furthermore, it can be used in conjunction with dlfilter-show-cycles.so
to provide higher granularity cycle information.
Reviewed-by: Andi Kleen <[email protected]>
Signed-off-by: Adrian Hunter <[email protected]>
Cc: Jiri Olsa <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Add an option to specify that synthesized IPC can be approximate, rather
than completely accurate.
Reviewed-by: Andi Kleen <[email protected]>
Signed-off-by: Adrian Hunter <[email protected]>
Cc: Jiri Olsa <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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ITRACE_HELP is used by perf commands to display help text for the --itrace
option. Add missing Z option.
Reviewed-by: Andi Kleen <[email protected]>
Signed-off-by: Adrian Hunter <[email protected]>
Cc: Jiri Olsa <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Commit cbefd24f0aee3a5d ("tools build: Add test to check if slang.h is
in /usr/include/slang/") added a proper test to check whether slang.h is
in a subdirectory, and commit 1955c8cf5e26b1f7 ("perf tools: Don't
hardcode host include path for libslang") removed the include path for
test-libslang.bin but missed test-all.bin.
Apply the same change to test-all.bin.
Reviewed-by: Florian Fainelli <[email protected]>
Fixes: 1955c8cf5e26 ("perf tools: Don't hardcode host include path for libslang")
Signed-off-by: John Keeping <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Nick Terrell <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Cleanup perf.data.old files which are also dropped by perf, handle
sigint and propagate it to the parent in case the test is run in a bash
while loop and don't create the temp files if the test will be skipped.
Reviewed-by: Leo Yan <[email protected]>
Signed-off-by: James Clark <[email protected]>
Acked-by: Ian Rogers <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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The temp file is only cleaned up if the test is not skipped, so delay
making it until after the skip so it doesn't get left behind in /tmp.
Signed-off-by: James Clark <[email protected]>
Acked-by: Ian Rogers <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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The temp files are only cleaned up if the test is not skipped, so delay
making them until after the skip so they don't get left behind in /tmp.
Signed-off-by: James Clark <[email protected]>
Acked-by: Ian Rogers <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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To pick up the fixes from upstream.
Fix simple conflict on session.c related to the file position fix that
went upstream and is touched by the active decomp changes in perf/core.
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Before enabling warnings through HOSTCFLAGS, fix the would-be warnings:
HOSTCC pmu-events/jevents.o
pmu-events/jevents.c:74:22: warning: no previous prototype for ‘convert’ [-Wmissing-prototypes]
74 | enum aggr_mode_class convert(const char *aggr_mode)
| ^~~~~~~
pmu-events/jevents.c: In function ‘print_events_table_entry’:
pmu-events/jevents.c:373:8: warning: declaration of ‘topic’ shadows a global declaration [-Wshadow]
373 | char *topic = pd->topic;
| ^~~~~
pmu-events/jevents.c:316:14: note: shadowed declaration is here
316 | static char *topic;
| ^~~~~
pmu-events/jevents.c: In function ‘json_events’:
pmu-events/jevents.c:554:9: warning: declaration of ‘func’ shadows a global declaration [-Wshadow]
554 | int (*func)(void *data, struct json_event *je),
| ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
pmu-events/jevents.c:85:15: note: shadowed declaration is here
85 | typedef int (*func)(void *data, struct json_event *je);
| ^~~~
pmu-events/jevents.c: In function ‘main’:
pmu-events/jevents.c:1211:25: warning: initialization discards ‘const’ qualifier from pointer target type [-Wdiscarded-qualifiers]
1211 | char *err_string_ext = "";
| ^~
pmu-events/jevents.c:1304:17: warning: assignment discards ‘const’ qualifier from pointer target type [-Wdiscarded-qualifiers]
1304 | err_string_ext = " for std arch event";
| ^
Signed-off-by: John Garry <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: James Clark <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Because _LARGEFILE64_SOURCE is set in perf, file offset sizes can be
64 bits. If a workflow needs to open /proc/kcore on a 32 bit system (for
example to decode Arm ETM kernel trace) then the size value will be
wrapped to 32 bits in the function file_size() at this line:
dso->data.file_size = st.st_size;
Setting the file_size member to be u64 fixes the issue and allows
/proc/kcore to be opened.
Reported-by: Denis Nikitin <[email protected]>
Signed-off-by: James Clark <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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The following build message:
rm dlfilters/dlfilter-test-api-v0.o
is unwanted.
The object file is being treated as an intermediate file and being
automatically removed. Mark the object file as .SECONDARY to prevent
removal and hence the message.
Requested-by: Arnaldo Carvalho de Melo <[email protected]>
Signed-off-by: Adrian Hunter <[email protected]>
Cc: Jiri Olsa <[email protected]>
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Add a new option '--cputype' to 'perf list' to display core-only PMU
events or atom-only PMU events.
Each hybrid PMU event has been assigned with a PMU name, this patch
compares the PMU name before listing the result.
For example:
perf list --cputype atom
...
cache:
core_reject_l2q.any
[Counts the number of request that were not accepted into the L2Q because the L2Q is FULL. Unit: cpu_atom]
...
The "Unit: cpu_atom" is displayed in the brief description section
to indicate this is an atom event.
Signed-off-by: Jin Yao <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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as part of extended regs
This patch enables presenting Sampled Instruction Address Register
(SIAR) and Sampled Data Address Register (SDAR) SPRs as part of extended
registers for the perf tool.
Add these SPR's to sample_reg_mask in the tool side (to use with -I?
option).
Reviewed-by: Kajol Jain <[email protected]>
Signed-off-by: Athira Jajeev <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Madhavan Srinivasan <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: Nageswara R Sastry <[email protected]>
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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tools side header file
PERF_REG_PMU_MASK_300 and PERF_REG_PMU_MASK_31 defines the mask value
for extended registers. Current definition of these mask values uses hex
constant and does not use registers by name, making it less readable.
Patch refactor the macro values in perf tools side header file by or'ing
together the actual register value constants.
Suggested-by: Michael Ellerman <[email protected]>
Reviewed-by: Kajol Jain <[email protected]>
Signed-off-by: Athira Jajeev <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Madhavan Srinivasan <[email protected]>
Cc: Nageswara R Sastry <[email protected]>
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Introduce function to check end-of-file status.
Reviewed-by: Jiri Olsa <[email protected]>
Signed-off-by: Alexey Bayduraev <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Antonov <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Alexei Budankov <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Riccardo Mancini <[email protected]>
Link: https://lore.kernel.org/r/b3b0e0904da01f9ec84d4ae9368df99ecd231598.1634113027.git.alexey.v.bayduraev@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Add READER_OK and READER_NODATA return codes to make the code more
clear.
Suggested-by: Jiri Olsa <[email protected]>
Reviewed-by: Jiri Olsa <[email protected]>
Reviewed-by: Riccardo Mancini <[email protected]>
Signed-off-by: Alexey Bayduraev <[email protected]>
Tested-by: Riccardo Mancini <[email protected]>
Acked-by: Namhyung Kim <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Antonov <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Alexei Budankov <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: https://lore.kernel.org/r/5fca481e91c3c5d2ba033d4c6e9b969f8033ab0f.1634113027.git.alexey.v.bayduraev@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Separate the reading code of a single event to a new
reader__read_event() function.
Suggested-by: Jiri Olsa <[email protected]>
Reviewed-by: Jiri Olsa <[email protected]>
Reviewed-by: Riccardo Mancini <[email protected]>
Signed-off-by: Alexey Bayduraev <[email protected]>
Tested-by: Riccardo Mancini <[email protected]>
Acked-by: Namhyung Kim <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Antonov <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Alexei Budankov <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: https://lore.kernel.org/r/ffe570d937138dd24f282978ce7ed9c46a06ff9b.1634113027.git.alexey.v.bayduraev@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Move the unmapping code to reader__mmap(), so that the mmap code is
located together.
Move the head/file_offset computation to reader__mmap(), so all the
offset computation is located together and in one place only.
Suggested-by: Jiri Olsa <[email protected]>
Reviewed-by: Jiri Olsa <[email protected]>
Reviewed-by: Riccardo Mancini <[email protected]>
Signed-off-by: Alexey Bayduraev <[email protected]>
Tested-by: Riccardo Mancini <[email protected]>
Acked-by: Namhyung Kim <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Antonov <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Alexei Budankov <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: https://lore.kernel.org/r/f1c5e17cfa1ecfe912d10b411be203b55d148bc7.1634113027.git.alexey.v.bayduraev@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Move the mapping code into a separate reader__mmap() function.
Suggested-by: Jiri Olsa <[email protected]>
Reviewed-by: Jiri Olsa <[email protected]>
Reviewed-by: Riccardo Mancini <[email protected]>
Signed-off-by: Alexey Bayduraev <[email protected]>
Tested-by: Riccardo Mancini <[email protected]>
Acked-by: Namhyung Kim <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Antonov <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Alexei Budankov <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: https://lore.kernel.org/r/e445de5bb85bbd91287986802d6ed0ce1b419b5a.1634113027.git.alexey.v.bayduraev@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Separate init/release code into reader__init() and reader__release_decomp()
functions.
Remove a duplicate call to ui_progress__init_size(), the same call can
be found in __perf_session__process_events().
For multiple traces ui_progress should be initialized by total size
before reader__init() calls.
Suggested-by: Jiri Olsa <[email protected]>
Reviewed-by: Jiri Olsa <[email protected]>
Reviewed-by: Riccardo Mancini <[email protected]>
Signed-off-by: Alexey Bayduraev <[email protected]>
Tested-by: Riccardo Mancini <[email protected]>
Acked-by: Namhyung Kim <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Antonov <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Alexei Budankov <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: https://lore.kernel.org/r/8bacf247de220be8e57af1d2b796322175f5e257.1634113027.git.alexey.v.bayduraev@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Introduce a decompressor data structure with pointers to decomp
objects and to zstd object.
We cannot just move session->zstd_data to decomp_data as
session->zstd_data is not only used for decompression.
Adding decompressor data object to reader object and introducing
active_decomp into perf_session object to select current decompressor.
Thus decompression could be executed separately for each data file.
Reviewed-by: Jiri Olsa <[email protected]>
Reviewed-by: Riccardo Mancini <[email protected]>
Signed-off-by: Alexey Bayduraev <[email protected]>
Tested-by: Riccardo Mancini <[email protected]>
Acked-by: Namhyung Kim <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Antonov <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Alexei Budankov <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: https://lore.kernel.org/r/0eee270cb52aebcbd029c8445d9009fd17709d53.1634113027.git.alexey.v.bayduraev@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
We need all the state info about reader in separate object to load data
from multiple files, so we can keep multiple readers at the same time.
Moving all items that need to be kept from reader__process_events to
the reader object. Introducing mmap_cur to keep current mapping.
Suggested-by: Jiri Olsa <[email protected]>
Reviewed-by: Jiri Olsa <[email protected]>
Reviewed-by: Riccardo Mancini <[email protected]>
Signed-off-by: Alexey Bayduraev <[email protected]>
Tested-by: Riccardo Mancini <[email protected]>
Acked-by: Namhyung Kim <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Antonov <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Alexei Budankov <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: https://lore.kernel.org/r/5c7bdebfaadd7fcb729bd999b181feccaa292e8e.1634113027.git.alexey.v.bayduraev@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Originally, software only supported redirecting at most one PEBS event to
Intel PT (PEBS-via-PT) because it was not able to differentiate one event
from another. To overcome that, add support for the
PERF_RECORD_AUX_OUTPUT_HW_ID side-band event.
Committer notes:
Cast the pointer arg to for_each_set_bit() to (unsigned long *), to fix
the build on 32-bit systems.
Reviewed-by: Alexander Shishkin <[email protected]>
Reviewed-by: Andi Kleen <[email protected]>
Signed-off-by: Adrian Hunter <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: [email protected]
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from netfilter, and can.
We'll have one more fix for a socket accounting regression, it's still
getting polished. Otherwise things look fine.
Current release - regressions:
- revert "vrf: reset skb conntrack connection on VRF rcv", there are
valid uses for previous behavior
- can: m_can: fix iomap_read_fifo() and iomap_write_fifo()
Current release - new code bugs:
- mlx5: e-switch, return correct error code on group creation failure
Previous releases - regressions:
- sctp: fix transport encap_port update in sctp_vtag_verify
- stmmac: fix E2E delay mechanism (in PTP timestamping)
Previous releases - always broken:
- netfilter: ip6t_rt: fix out-of-bounds read of ipv6_rt_hdr
- netfilter: xt_IDLETIMER: fix out-of-bound read caused by lack of
init
- netfilter: ipvs: make global sysctl read-only in non-init netns
- tcp: md5: fix selection between vrf and non-vrf keys
- ipv6: count rx stats on the orig netdev when forwarding
- bridge: mcast: use multicast_membership_interval for IGMPv3
- can:
- j1939: fix UAF for rx_kref of j1939_priv abort sessions on
receiving bad messages
- isotp: fix TX buffer concurrent access in isotp_sendmsg() fix
return error on FC timeout on TX path
- ice: fix re-init of RDMA Tx queues and crash if RDMA was not inited
- hns3: schedule the polling again when allocation fails, prevent
stalls
- drivers: add missing of_node_put() when aborting
for_each_available_child_of_node()
- ptp: fix possible memory leak and UAF in ptp_clock_register()
- e1000e: fix packet loss in burst mode on Tiger Lake and later
- mlx5e: ipsec: fix more checksum offload issues"
* tag 'net-5.15-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (75 commits)
usbnet: sanity check for maxpacket
net: enetc: make sure all traffic classes can send large frames
net: enetc: fix ethtool counter name for PM0_TERR
ptp: free 'vclock_index' in ptp_clock_release()
sfc: Don't use netif_info before net_device setup
sfc: Export fibre-specific supported link modes
net/mlx5e: IPsec: Fix work queue entry ethernet segment checksum flags
net/mlx5e: IPsec: Fix a misuse of the software parser's fields
net/mlx5e: Fix vlan data lost during suspend flow
net/mlx5: E-switch, Return correct error code on group creation failure
net/mlx5: Lag, change multipath and bonding to be mutually exclusive
ice: Add missing E810 device ids
igc: Update I226_K device ID
e1000e: Fix packet loss on Tiger Lake and later
e1000e: Separate TGP board type from SPT
ptp: Fix possible memory leak in ptp_clock_register()
net: stmmac: Fix E2E delay mechanism
nfc: st95hf: Make spi remove() callback return zero
net: hns3: disable sriov before unload hclge layer
net: hns3: fix vf reset workqueue cannot exit
...
|
|
Pablo Neira Ayuso says:
====================
Netfilter/IPVS fixes for net
The following patchset contains Netfilter fixes for net:
1) Crash due to missing initialization of timer data in
xt_IDLETIMER, from Juhee Kang.
2) NF_CONNTRACK_SECMARK should be bool in Kconfig, from Vegard Nossum.
3) Skip netdev events on netns removal, from Florian Westphal.
4) Add testcase to show port shadowing via UDP, also from Florian.
5) Remove pr_debug() code in ip6t_rt, this fixes a crash due to
unsafe access to non-linear skbuff, from Xin Long.
6) Make net/ipv4/vs/debug_level read-only from non-init netns,
from Antoine Tenart.
7) Remove bogus invocation to bash in selftests/netfilter/nft_flowtable.sh
also from Florian.
====================
Signed-off-by: David S. Miller <[email protected]>
|
|
Pull kvm fixes from Paolo Bonzini:
"Tools:
- kvm_stat: do not show halt_wait_ns since it is not a cumulative statistic
x86:
- clean ups and fixes for bus lock vmexit and lazy allocation of rmaps
- two fixes for SEV-ES (one more coming as soon as I get reviews)
- fix for static_key underflow
ARM:
- Properly refcount pages used as a concatenated stage-2 PGD
- Fix missing unlock when detecting the use of MTE+VM_SHARED"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: SEV-ES: reduce ghcb_sa_len to 32 bits
KVM: VMX: Remove redundant handling of bus lock vmexit
KVM: kvm_stat: do not show halt_wait_ns
KVM: x86: WARN if APIC HW/SW disable static keys are non-zero on unload
Revert "KVM: x86: Open code necessary bits of kvm_lapic_set_base() at vCPU RESET"
KVM: SEV-ES: Set guest_state_protected after VMSA update
KVM: X86: fix lazy allocation of rmaps
KVM: SEV-ES: fix length of string I/O
KVM: arm64: Release mmap_lock when using VM_SHARED with MTE
KVM: arm64: Report corrupted refcount at EL2
KVM: arm64: Fix host stage-2 PGD refcount
KVM: s390: Function documentation fixes
|
|
The PERF_RECORD_AUX_OUTPUT_HW_ID event provides a way to match AUX output
data like Intel PT PEBS-via-PT back to the event that it came from, by
providing a hardware ID that is present in the AUX output.
Reviewed-by: Alexander Shishkin <[email protected]>
Reviewed-by: Andi Kleen <[email protected]>
Signed-off-by: Adrian Hunter <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: [email protected]
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
This is so they are categorised in the perf list output. The pmus all
exist in the armv8-common-and-microarch.json and arm-recommended.json
files, so this commit places them into each category's own file under
tools/perf/pmu-events/arch/arm64/arm/neoverse-v1
Also add the Neoverse V1 to the arm64 mapfile
Reviewed-by: John Garry <[email protected]>
Signed-off-by: Andrew Kilroy <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Mathieu Poirier <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Will Deacon <[email protected]>
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Add new armv8 common events for use by Arm Neoverse V1 cores in a later
commit. These are defined in the ArmV8 architecture reference manual
available from
https://developer.arm.com/documentation/ddi0487/gb/?lang=en
Reviewed-by: John Garry <[email protected]>
Signed-off-by: Andrew Kilroy <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Mathieu Poirier <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Will Deacon <[email protected]>
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
There are some syntactical mistakes in the json files for the Cortex A76
N1 (Neoverse N1). This was obstructing parsing from an external tool.
This patch fixes the erroneous placement of commas causing the problems.
Reviewed-by: John Garry <[email protected]>
Signed-off-by: Andrew Kilroy <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Mathieu Poirier <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Will Deacon <[email protected]>
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
By allowing modifiers on metrics we can, for example, gather the
same metric for kernel and user mode. On a SkylakeX with
TopDownL1 this gives:
$ perf stat -M TopDownL1:u,TopDownL1:k -a sleep 2
Performance counter stats for 'system wide':
849,855,577 uops_issued.any:k # 0.06 Bad_Speculation:k
# 0.51 Backend_Bound:k (16.71%)
1,995,257,996 cycles:k
# 7981031984.00 SLOTS:k
# 0.35 Frontend_Bound:k
# 0.08 Retiring:k (16.71%)
2,791,940,753 idq_uops_not_delivered.core:k (16.71%)
641,961,928 uops_retired.retire_slots:k (16.71%)
72,239,337 int_misc.recovery_cycles:k (16.71%)
2,294,413,647 uops_issued.any:u # 0.04 Bad_Speculation:u
# 0.39 Backend_Bound:u (16.78%)
1,333,248,940 cycles:u
# 5332995760.00 SLOTS:u
# 0.16 Frontend_Bound:u
# 0.40 Retiring:u (16.78%)
858,517,081 idq_uops_not_delivered.core:u (16.78%)
2,153,789,582 uops_retired.retire_slots:u (16.78%)
19,373,627 int_misc.recovery_cycles:u (16.78%)
31,503,661 cpu_clk_unhalted.one_thread_active:k # 0.18 CoreIPC_SMT:k (16.73%)
315,454,104 inst_retired.any:k # 315454104.00 Instructions:k (16.73%)
42,533,729 cpu_clk_unhalted.ref_xclk:k (16.73%)
2,043,119,037 cpu_clk_unhalted.thread:k (16.73%)
28,843,803 cpu_clk_unhalted.one_thread_active:u # 1.55 CoreIPC_SMT:u (16.60%)
2,153,353,869 inst_retired.any:u # 2153353869.00 Instructions:u (16.60%)
28,844,743 cpu_clk_unhalted.ref_xclk:u (16.60%)
1,387,544,378 cpu_clk_unhalted.thread:u (16.60%)
308,031,603 inst_retired.any:k # 0.15 CoreIPC:k (33.19%)
2,036,774,753 cycles:k (33.19%)
1,994,344,281 inst_retired.any:u # 1.59 CoreIPC:u (33.18%)
1,251,538,227 cycles:u (33.18%)
2.000342948 seconds time elapsed
Modifiers are naively copy and pasted on to events, this can yield errors like:
$ perf stat -M Kernel_Utilization:k -a sleep 2
event syntax error: '..d.thread:k/kk,cpu_clk_unhalted.thread/metric-id=cpu_clk_unhalted.thread/k..'
\___ Bad modifier
Usage: perf stat [<options>] [<command>]
-M, --metrics <metric/metric group list>
monitor specified metrics or metric groups (separated by ,)
When modifiers are present with constraints, from --metric-no-group or
the NMI watchdog, they are no longer placed in the same set - which may
miss deduplicating events.
Signed-off-by: Ian Rogers <[email protected]>
Acked-by: Andi Kleen <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Antonov <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andrew Kilroy <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Changbin Du <[email protected]>
Cc: Denys Zagorui <[email protected]>
Cc: Fabian Hemmer <[email protected]>
Cc: Felix Fietkau <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jacob Keller <[email protected]>
Cc: Jiapeng Chong <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Joakim Zhang <[email protected]>
Cc: John Garry <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Kees Kook <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Nicholas Fraser <[email protected]>
Cc: Nick Desaulniers <[email protected]>
Cc: Paul Clarke <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Riccardo Mancini <[email protected]>
Cc: Sami Tolvanen <[email protected]>
Cc: ShihCheng Tu <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Sumanth Korikkar <[email protected]>
Cc: Thomas Richter <[email protected]>
Cc: Wan Jiabing <[email protected]>
Cc: Zhen Lei <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Previously the broken modifier causes a usage message to printed but
nothing else.
After:
$ perf stat -e 'cycles:kk' -a sleep 2
event syntax error: 'cycles:kk'
\___ Bad modifier
Run 'perf list' for a list of valid events
Usage: perf stat [<options>] [<command>]
-e, --event <event> event selector. use 'perf list' to list available events
$ perf stat -e '{instructions,cycles}:kk' -a sleep 2
event syntax error: '..ns,cycles}:kk'
\___ Bad modifier
Run 'perf list' for a list of valid events
Usage: perf stat [<options>] [<command>]
-e, --event <event> event selector. use 'perf list' to list available events
Signed-off-by: Ian Rogers <[email protected]>
Acked-by: Andi Kleen <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Antonov <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andrew Kilroy <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Changbin Du <[email protected]>
Cc: Denys Zagorui <[email protected]>
Cc: Fabian Hemmer <[email protected]>
Cc: Felix Fietkau <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jacob Keller <[email protected]>
Cc: Jiapeng Chong <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Joakim Zhang <[email protected]>
Cc: John Garry <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Kees Kook <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Nicholas Fraser <[email protected]>
Cc: Nick Desaulniers <[email protected]>
Cc: Paul Clarke <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Riccardo Mancini <[email protected]>
Cc: Sami Tolvanen <[email protected]>
Cc: ShihCheng Tu <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Sumanth Korikkar <[email protected]>
Cc: Thomas Richter <[email protected]>
Cc: Wan Jiabing <[email protected]>
Cc: Zhen Lei <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
There's no clear reason for the inconsistency that stems from the
initial commit.
Signed-off-by: Ian Rogers <[email protected]>
Acked-by: Andi Kleen <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Antonov <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andrew Kilroy <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Changbin Du <[email protected]>
Cc: Denys Zagorui <[email protected]>
Cc: Fabian Hemmer <[email protected]>
Cc: Felix Fietkau <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jacob Keller <[email protected]>
Cc: Jiapeng Chong <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Joakim Zhang <[email protected]>
Cc: John Garry <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Kees Kook <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Nicholas Fraser <[email protected]>
Cc: Nick Desaulniers <[email protected]>
Cc: Paul Clarke <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Riccardo Mancini <[email protected]>
Cc: Sami Tolvanen <[email protected]>
Cc: ShihCheng Tu <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Sumanth Korikkar <[email protected]>
Cc: Thomas Richter <[email protected]>
Cc: Wan Jiabing <[email protected]>
Cc: Zhen Lei <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Previously find_evsel_group was trying to share events while
mark-sweeping to eliminate unused events, this was complicated and had
issues around uncore events and grouped sharing.
This was further complicated by the event string being created while
metrics and metric groups were being added, with the string affecting
the evlist order.
This change moves deduplication before event parsing. Ungrouped events
are placed in a single combined set. Groups are checked to see if an
earlier (larger) group can support their events.
As the deduplication and sharing detection is done on metric IDs before
parsing, wildcard expansion problems with uncore events are avoided.
Overall the code is simpler while working better.
An example of failing to deduplicate can be seen with a list of metrics
like the following, where in the after case multiplexing has been
avoided:
Before:
$ perf stat -M Bad_Speculation,Backend_Bound,Frontend_Bound,Retiring -a sleep 2
Performance counter stats for 'system wide':
959,620,872 uops_issued.any # 0.06 Bad_Speculation (50.03%)
2,163,072,261 cycles
# 0.09 Retiring (50.03%)
735,827,436 uops_retired.retire_slots (50.03%)
74,676,484 int_misc.recovery_cycles (50.03%)
987,062,794 uops_issued.any # 0.50 Backend_Bound (49.97%)
2,203,734,187 cycles
# 0.35 Frontend_Bound (49.97%)
3,085,016,091 idq_uops_not_delivered.core (49.97%)
758,599,232 uops_retired.retire_slots (49.97%)
75,807,526 int_misc.recovery_cycles (49.97%)
2.002103760 seconds time elapsed
After:
$ sudo perf stat -M Bad_Speculation,Backend_Bound,Frontend_Bound,Retiring -a sleep 2
Performance counter stats for 'system wide':
769,694,676 uops_issued.any # 0.08 Bad_Speculation
# 0.41 Backend_Bound
1,087,548,633 cycles
# 0.38 Frontend_Bound
# 0.14 Retiring
1,642,085,777 idq_uops_not_delivered.core
603,112,590 uops_retired.retire_slots
43,787,854 int_misc.recovery_cycles
2.003844383 seconds time elapsed
Signed-off-by: Ian Rogers <[email protected]>
Acked-by: Andi Kleen <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Antonov <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andrew Kilroy <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Changbin Du <[email protected]>
Cc: Denys Zagorui <[email protected]>
Cc: Fabian Hemmer <[email protected]>
Cc: Felix Fietkau <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jacob Keller <[email protected]>
Cc: Jiapeng Chong <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Joakim Zhang <[email protected]>
Cc: John Garry <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Kees Kook <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Nicholas Fraser <[email protected]>
Cc: Nick Desaulniers <[email protected]>
Cc: Paul Clarke <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Riccardo Mancini <[email protected]>
Cc: Sami Tolvanen <[email protected]>
Cc: ShihCheng Tu <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Sumanth Korikkar <[email protected]>
Cc: Thomas Richter <[email protected]>
Cc: Wan Jiabing <[email protected]>
Cc: Zhen Lei <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Add a helper that returns true if all the IDs in needles are present in
haystack.
Later this will be used in sharing events between metrics.
Signed-off-by: Ian Rogers <[email protected]>
Acked-by: Andi Kleen <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Antonov <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andrew Kilroy <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Changbin Du <[email protected]>
Cc: Denys Zagorui <[email protected]>
Cc: Fabian Hemmer <[email protected]>
Cc: Felix Fietkau <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jacob Keller <[email protected]>
Cc: Jiapeng Chong <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Joakim Zhang <[email protected]>
Cc: John Garry <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Kees Kook <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Nicholas Fraser <[email protected]>
Cc: Nick Desaulniers <[email protected]>
Cc: Paul Clarke <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Riccardo Mancini <[email protected]>
Cc: Sami Tolvanen <[email protected]>
Cc: ShihCheng Tu <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Sumanth Korikkar <[email protected]>
Cc: Thomas Richter <[email protected]>
Cc: Wan Jiabing <[email protected]>
Cc: Zhen Lei <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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For a metric like IPC a group of events like {instructions,cycles}:W
would be formed.
If the events names were changed in parsing then the metric expression
parser would fail to find them.
This change makes the event encoding be something like:
{instructions/metric-id=instructions/, cycles/metric-id=cycles/}
and then uses the evsel's stable metric-id value to locate the events.
This fixes the case that an event is restricted to user because of the
paranoia setting:
$ echo 2 > /proc/sys/kernel/perf_event_paranoid
$ perf stat -M IPC /bin/true
Performance counter stats for '/bin/true':
150,298 inst_retired.any:u # 0.77 IPC
187,095 cpu_clk_unhalted.thread:u
0.002042731 seconds time elapsed
0.000000000 seconds user
0.002377000 seconds sys
Adding the metric-id as a qualifier has a complication in that
qualifiers will become embedded in qualifiers.
For example, msr/tsc/ could become msr/tsc,metric-id=msr/tsc// which
will fail parse-events.
To solve this problem the metric is encoded and decoded for the
metric-id with !<num> standing in for an encoded value.
Previously ! wasn't parsed.
With this msr/tsc/ becomes msr/tsc,metric-id=msr!3tsc!3/
The metric expression parser is changed so that @ isn't changed to /,
instead this is done when the ID is encoded for parse events.
metricgroup__add_metric_non_group() and metricgroup__add_metric_weak_group()
need to inject the metric-id qualifier, so to avoid repetition they are
merged into a single metricgroup__build_event_string with error codes
more rigorously checked.
stat-shadow's prepare_metric() uses the metric-id to match the metricgroup
code.
As "metric-id=..." is added to all events, it is adding during testing
with the fake PMU.
This complicates pmu_str_check code as PE_PMU_EVENT_FAKE won't match as
part of a configuration.
The testing fake PMU case is fixed so that if a known qualifier with an
! is parsed then it isn't reported as a fake PMU.
This is sufficient to pass all testing but it and the original mechanism
are somewhat brittle.
Signed-off-by: Ian Rogers <[email protected]>
Acked-by: Andi Kleen <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Antonov <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andrew Kilroy <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Changbin Du <[email protected]>
Cc: Denys Zagorui <[email protected]>
Cc: Fabian Hemmer <[email protected]>
Cc: Felix Fietkau <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jacob Keller <[email protected]>
Cc: Jiapeng Chong <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Joakim Zhang <[email protected]>
Cc: John Garry <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Kees Kook <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Nicholas Fraser <[email protected]>
Cc: Nick Desaulniers <[email protected]>
Cc: Paul Clarke <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Riccardo Mancini <[email protected]>
Cc: Sami Tolvanen <[email protected]>
Cc: ShihCheng Tu <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Sumanth Korikkar <[email protected]>
Cc: Thomas Richter <[email protected]>
Cc: Wan Jiabing <[email protected]>
Cc: Zhen Lei <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
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An event like inst_retired.any on an Intel skylake is found in the
pmu-events code created from the pipeline event JSON.
The event is an alias for cpu/event=0xc0,period=2000003/ and
parse-events recognizes the event with the token PE_KERNEL_PMU_EVENT.
The parser doesn't currently allow extra configuration on such events,
except for modifiers, so:
$ perf stat -e inst_retired.any// /bin/true
event syntax error: 'inst_retired.any//'
\___ parser error
Run 'perf list' for a list of valid events
Usage: perf stat [<options>] [<command>]
-e, --event <event> event selector. use 'perf list' to list available events
This patch adds configuration to these events which can be useful for a
number of parameters like name and call-graph:
$ sudo perf record -e inst_retired.any/call-graph=lbr/ -a sleep 1
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 1.856 MB perf.data (44 samples) ]
It is necessary for the metric code so that we may add metric-id values
to these events before they are parsed.
Signed-off-by: Ian Rogers <[email protected]>
Acked-by: Andi Kleen <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Antonov <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andrew Kilroy <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Changbin Du <[email protected]>
Cc: Denys Zagorui <[email protected]>
Cc: Fabian Hemmer <[email protected]>
Cc: Felix Fietkau <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jacob Keller <[email protected]>
Cc: Jiapeng Chong <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Joakim Zhang <[email protected]>
Cc: John Garry <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Kees Kook <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Nicholas Fraser <[email protected]>
Cc: Nick Desaulniers <[email protected]>
Cc: Paul Clarke <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Riccardo Mancini <[email protected]>
Cc: Sami Tolvanen <[email protected]>
Cc: ShihCheng Tu <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Sumanth Korikkar <[email protected]>
Cc: Thomas Richter <[email protected]>
Cc: Wan Jiabing <[email protected]>
Cc: Zhen Lei <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
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Add a new "metric-id" term to events so that metric parsing can set an
ID that can be reliably looked up.
Metric parsing currently will turn a metric like "instructions/cycles"
into a parse events string of "{instructions,cycles}:W".
However, parse-events may change "instructions" into "instructions:u" if
perf_event_paranoid=2.
When this happens expr__resolve_id currently fails as stat-shadow adds
the ID "instructions:u" to match with the counter value and the metric
tries to look up the ID just "instructions".
A later patch will use the new term.
An example of the current problem:
$ echo -1 > /proc/sys/kernel/perf_event_paranoid
$ perf stat -M IPC /bin/true
Performance counter stats for '/bin/true':
1,217,161 inst_retired.any # 0.97 IPC
1,250,389 cpu_clk_unhalted.thread
0.002064773 seconds time elapsed
0.002378000 seconds user
0.000000000 seconds sys
$ echo 2 > /proc/sys/kernel/perf_event_paranoid
$ perf stat -M IPC /bin/true
Performance counter stats for '/bin/true':
150,298 inst_retired.any:u # nan IPC
187,095 cpu_clk_unhalted.thread:u
0.002042731 seconds time elapsed
0.000000000 seconds user
0.002377000 seconds sys
Note: nan IPC is printed as an effect of "perf metric: Use NAN for
missing event IDs." but earlier versions of perf just fail with a parse
error and display no value.
Signed-off-by: Ian Rogers <[email protected]>
Acked-by: Andi Kleen <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Antonov <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andrew Kilroy <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Changbin Du <[email protected]>
Cc: Denys Zagorui <[email protected]>
Cc: Fabian Hemmer <[email protected]>
Cc: Felix Fietkau <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jacob Keller <[email protected]>
Cc: Jiapeng Chong <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Joakim Zhang <[email protected]>
Cc: John Garry <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Kees Kook <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Nicholas Fraser <[email protected]>
Cc: Nick Desaulniers <[email protected]>
Cc: Paul Clarke <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Riccardo Mancini <[email protected]>
Cc: Sami Tolvanen <[email protected]>
Cc: ShihCheng Tu <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Sumanth Korikkar <[email protected]>
Cc: Thomas Richter <[email protected]>
Cc: Wan Jiabing <[email protected]>
Cc: Zhen Lei <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
The evsel name is strdup-ed before assignment and so can be const.
A later change will add another similar string.
Using const makes it clearer that these are not out arguments.
Signed-off-by: Ian Rogers <[email protected]>
Acked-by: Andi Kleen <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Antonov <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andrew Kilroy <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Changbin Du <[email protected]>
Cc: Denys Zagorui <[email protected]>
Cc: Fabian Hemmer <[email protected]>
Cc: Felix Fietkau <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jacob Keller <[email protected]>
Cc: Jiapeng Chong <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Joakim Zhang <[email protected]>
Cc: John Garry <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Kees Kook <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Nicholas Fraser <[email protected]>
Cc: Nick Desaulniers <[email protected]>
Cc: Paul Clarke <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Riccardo Mancini <[email protected]>
Cc: Sami Tolvanen <[email protected]>
Cc: ShihCheng Tu <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Sumanth Korikkar <[email protected]>
Cc: Thomas Richter <[email protected]>
Cc: Wan Jiabing <[email protected]>
Cc: Zhen Lei <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Don't build a list and then turn to an array, just directly build the
array.
The size of the array is known due to the search for a duplicate.
Signed-off-by: Ian Rogers <[email protected]>
Acked-by: Andi Kleen <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Antonov <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andrew Kilroy <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Changbin Du <[email protected]>
Cc: Denys Zagorui <[email protected]>
Cc: Fabian Hemmer <[email protected]>
Cc: Felix Fietkau <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jacob Keller <[email protected]>
Cc: Jiapeng Chong <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Joakim Zhang <[email protected]>
Cc: John Garry <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Kees Kook <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Nicholas Fraser <[email protected]>
Cc: Nick Desaulniers <[email protected]>
Cc: Paul Clarke <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Riccardo Mancini <[email protected]>
Cc: Sami Tolvanen <[email protected]>
Cc: ShihCheng Tu <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Sumanth Korikkar <[email protected]>
Cc: Thomas Richter <[email protected]>
Cc: Wan Jiabing <[email protected]>
Cc: Zhen Lei <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Add documentation as part of code tidying.
Signed-off-by: Ian Rogers <[email protected]>
Acked-by: Andi Kleen <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Antonov <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andrew Kilroy <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Changbin Du <[email protected]>
Cc: Denys Zagorui <[email protected]>
Cc: Fabian Hemmer <[email protected]>
Cc: Felix Fietkau <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jacob Keller <[email protected]>
Cc: Jiapeng Chong <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Joakim Zhang <[email protected]>
Cc: John Garry <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Kees Kook <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Nicholas Fraser <[email protected]>
Cc: Nick Desaulniers <[email protected]>
Cc: Paul Clarke <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Riccardo Mancini <[email protected]>
Cc: Sami Tolvanen <[email protected]>
Cc: ShihCheng Tu <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Sumanth Korikkar <[email protected]>
Cc: Thomas Richter <[email protected]>
Cc: Wan Jiabing <[email protected]>
Cc: Zhen Lei <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|