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2016-01-12Merge branch 'for-linus-4.5-rc1' of ↵Linus Torvalds1-3/+24
git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml Pull UML updates from Richard Weinberger: "This contains beside of random fixes/cleanups two bigger changes: - seccomp support by Mickaël Salaün - IRQ rework by Anton Ivanov" * 'for-linus-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml: um: Use race-free temporary file creation um: Do not set unsecure permission for temporary file um: Fix build error and kconfig for i386 um: Add seccomp support um: Add full asm/syscall.h support selftests/seccomp: Remove the need for HAVE_ARCH_TRACEHOOK um: Fix ptrace GETREGS/SETREGS bugs um: link with -lpthread um: Update UBD to use pread/pwrite family of functions um: Do not change hard IRQ flags in soft IRQ processing um: Prevent IRQ handler reentrancy uml: flush stdout before forking uml: fix hostfs mknod()
2016-01-11Merge branches 'timers-core-for-linus' and 'timers-urgent-for-linus' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer updates - and a leftover fix - from Thomas Gleixner: "A rather large (commit wise) update from the timer side: - A bulk update to make compile tests work in the clocksource drivers - An overhaul of the h8300 timers - Some more Y2038 work - A few overflow prevention checks in the timekeeping/ntp code - The usual pile of fixes and improvements to the various clocksource/clockevent drivers and core code" Also: "A single fix for the posix-clock poll code which did not make it into 4.4" * 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (84 commits) clocksource/drivers/acpi_pm: Convert to pr_* macros clocksource: Make clocksource validation work for all clocksources timekeeping: Cap adjustments so they don't exceed the maxadj value ntp: Fix second_overflow's input parameter type to be 64bits ntp: Change time_reftime to time64_t and utilize 64bit __ktime_get_real_seconds timekeeping: Provide internal function __ktime_get_real_seconds clocksource/drivers/h8300: Use ioread / iowrite clocksource/drivers/h8300: Initializer cleanup. clocksource/drivers/h8300: Simplify delta handling clocksource/drivers/h8300: Fix timer not overflow case clocksource/drivers/h8300: Change to overflow interrupt clocksource/drivers/lpc32: Correct pr_err() output format clocksource/drivers/arm_global_timer: Fix suspend resume clocksource/drivers/pistachio: Fix wrong calculated clocksource read value clockevents/drivers/arm_global_timer: Use writel_relaxed in gt_compare_set clocksource/drivers/dw_apb_timer: Inline apbt_readl and apbt_writel clocksource/drivers/dw_apb_timer: Use {readl|writel}_relaxed in critical path clocksource/drivers/dw_apb_timer: Fix apbt_readl return types clocksource/drivers/tango-xtal: Replace code by clocksource_mmio_init clocksource/drivers/h8300: Increase the compilation test coverage ... * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: posix-clock: Fix return code on the poll method's error path
2016-01-11Merge branch 'perf-core-for-linus' of ↵Linus Torvalds213-1621/+7897
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf updates from Ingo Molnar: "Kernel side changes: - Intel Knights Landing support. (Harish Chegondi) - Intel Broadwell-EP uncore PMU support. (Kan Liang) - Core code improvements. (Peter Zijlstra.) - Event filter, LBR and PEBS fixes. (Stephane Eranian) - Enable cycles:pp on Intel Atom. (Stephane Eranian) - Add cycles:ppp support for Skylake. (Andi Kleen) - Various x86 NMI overhead optimizations. (Andi Kleen) - Intel PT enhancements. (Takao Indoh) - AMD cache events fix. (Vince Weaver) Tons of tooling changes: - Show random perf tool tips in the 'perf report' bottom line (Namhyung Kim) - perf report now defaults to --group if the perf.data file has grouped events, try it with: # perf record -e '{cycles,instructions}' -a sleep 1 [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 1.093 MB perf.data (1247 samples) ] # perf report # Samples: 1K of event 'anon group { cycles, instructions }' # Event count (approx.): 1955219195 # # Overhead Command Shared Object Symbol 2.86% 0.22% swapper [kernel.kallsyms] [k] intel_idle 1.05% 0.33% firefox libxul.so [.] js::SetObjectElement 1.05% 0.00% kworker/0:3 [kernel.kallsyms] [k] gen6_ring_get_seqno 0.88% 0.17% chrome chrome [.] 0x0000000000ee27ab 0.65% 0.86% firefox libxul.so [.] js::ValueToId<(js::AllowGC)1> 0.64% 0.23% JS Helper libxul.so [.] js::SplayTree<js::jit::LiveRange*, js::jit::LiveRange>::splay 0.62% 1.27% firefox libxul.so [.] js::GetIterator 0.61% 1.74% firefox libxul.so [.] js::NativeSetProperty 0.61% 0.31% firefox libxul.so [.] js::SetPropertyByDefining - Introduce the 'perf stat record/report' workflow: Generate perf.data files from 'perf stat', to tap into the scripting capabilities perf has instead of defining a 'perf stat' specific scripting support to calculate event ratios, etc. Simple example: $ perf stat record -e cycles usleep 1 Performance counter stats for 'usleep 1': 1,134,996 cycles 0.000670644 seconds time elapsed $ perf stat report Performance counter stats for '/home/acme/bin/perf stat record -e cycles usleep 1': 1,134,996 cycles 0.000670644 seconds time elapsed $ It generates PERF_RECORD_ userspace records to store the details: $ perf report -D | grep PERF_RECORD 0xf0 [0x28]: PERF_RECORD_THREAD_MAP nr: 1 thread: 27637 0x118 [0x12]: PERF_RECORD_CPU_MAP nr: 1 cpu: 65535 0x12a [0x40]: PERF_RECORD_STAT_CONFIG 0x16a [0x30]: PERF_RECORD_STAT -1 -1 0x19a [0x40]: PERF_RECORD_MMAP -1/0: [0xffffffff81000000(0x1f000000) @ 0xffffffff81000000]: x [kernel.kallsyms]_text 0x1da [0x18]: PERF_RECORD_STAT_ROUND [acme@ssdandy linux]$ An effort was made to make perf.data files generated like this to not generate cryptic messages when processed by older tools. The 'perf script' bits need rebasing, will go up later. - Make command line options always available, even when they depend on some feature being enabled, warning the user about use of such options (Wang Nan) - Support hw breakpoint events (mem:0xAddress) in the default output mode in 'perf script' (Wang Nan) - Fixes and improvements for supporting annotating ARM binaries, support ARM call and jump instructions, more work needed to have arch specific stuff separated into tools/perf/arch/*/annotate/ (Russell King) - Add initial 'perf config' command, for now just with a --list command to the contents of the configuration file in use and a basic man page describing its format, commands for doing edits and detailed documentation are being reviewed and proof-read. (Taeung Song) - Allows BPF scriptlets specify arguments to be fetched using DWARF info, using a prologue generated at compile/build time (He Kuang, Wang Nan) - Allow attaching BPF scriptlets to module symbols (Wang Nan) - Allow attaching BPF scriptlets to userspace code using uprobe (Wang Nan) - BPF programs now can specify 'perf probe' tunables via its section name, separating key=val values using semicolons (Wang Nan) Testing some of these new BPF features: Use case: get callchains when receiving SSL packets, filter then in the kernel, at arbitrary place. # cat ssl.bpf.c #define SEC(NAME) __attribute__((section(NAME), used)) struct pt_regs; SEC("func=__inet_lookup_established hnum") int func(struct pt_regs *ctx, int err, unsigned short port) { return err == 0 && port == 443; } char _license[] SEC("license") = "GPL"; int _version SEC("version") = LINUX_VERSION_CODE; # # perf record -a -g -e ssl.bpf.c ^C[ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.787 MB perf.data (3 samples) ] # perf script | head -30 swapper 0 [000] 58783.268118: perf_bpf_probe:func: (ffffffff816a0f60) hnum=0x1bb 8a0f61 __inet_lookup_established (/lib/modules/4.3.0+/build/vmlinux) 896def ip_rcv_finish (/lib/modules/4.3.0+/build/vmlinux) 8976c2 ip_rcv (/lib/modules/4.3.0+/build/vmlinux) 855eba __netif_receive_skb_core (/lib/modules/4.3.0+/build/vmlinux) 8565d8 __netif_receive_skb (/lib/modules/4.3.0+/build/vmlinux) 8572a8 process_backlog (/lib/modules/4.3.0+/build/vmlinux) 856b11 net_rx_action (/lib/modules/4.3.0+/build/vmlinux) 2a284b __do_softirq (/lib/modules/4.3.0+/build/vmlinux) 2a2ba3 irq_exit (/lib/modules/4.3.0+/build/vmlinux) 96b7a4 do_IRQ (/lib/modules/4.3.0+/build/vmlinux) 969807 ret_from_intr (/lib/modules/4.3.0+/build/vmlinux) 2dede5 cpu_startup_entry (/lib/modules/4.3.0+/build/vmlinux) 95d5bc rest_init (/lib/modules/4.3.0+/build/vmlinux) 1163ffa start_kernel ([kernel.vmlinux].init.text) 11634d7 x86_64_start_reservations ([kernel.vmlinux].init.text) 1163623 x86_64_start_kernel ([kernel.vmlinux].init.text) qemu-system-x86 9178 [003] 58785.792417: perf_bpf_probe:func: (ffffffff816a0f60) hnum=0x1bb 8a0f61 __inet_lookup_established (/lib/modules/4.3.0+/build/vmlinux) 896def ip_rcv_finish (/lib/modules/4.3.0+/build/vmlinux) 8976c2 ip_rcv (/lib/modules/4.3.0+/build/vmlinux) 855eba __netif_receive_skb_core (/lib/modules/4.3.0+/build/vmlinux) 8565d8 __netif_receive_skb (/lib/modules/4.3.0+/build/vmlinux) 856660 netif_receive_skb_internal (/lib/modules/4.3.0+/build/vmlinux) 8566ec netif_receive_skb_sk (/lib/modules/4.3.0+/build/vmlinux) 430a br_handle_frame_finish ([bridge]) 48bc br_handle_frame ([bridge]) 855f44 __netif_receive_skb_core (/lib/modules/4.3.0+/build/vmlinux) 8565d8 __netif_receive_skb (/lib/modules/4.3.0+/build/vmlinux) # - Use 'perf probe' various options to list functions, see what variables can be collected at any given point, experiment first collecting without a filter, then filter, use it together with 'perf trace', 'perf top', with or without callchains, if it explodes, please tell us! - Introduce a new callchain mode: "folded", that will list per line representations of all callchains for a give histogram entry, facilitating 'perf report' output processing by other tools, such as Brendan Gregg's flamegraph tools (Namhyung Kim) E.g: # perf report | grep -v ^# | head 18.37% 0.00% swapper [kernel.kallsyms] [k] cpu_startup_entry | ---cpu_startup_entry | |--12.07%--start_secondary | --6.30%--rest_init start_kernel x86_64_start_reservations x86_64_start_kernel # Becomes, in "folded" mode: # perf report -g folded | grep -v ^# | head -5 18.37% 0.00% swapper [kernel.kallsyms] [k] cpu_startup_entry 12.07% cpu_startup_entry;start_secondary 6.30% cpu_startup_entry;rest_init;start_kernel;x86_64_start_reservations;x86_64_start_kernel 16.90% 0.00% swapper [kernel.kallsyms] [k] call_cpuidle 11.23% call_cpuidle;cpu_startup_entry;start_secondary 5.67% call_cpuidle;cpu_startup_entry;rest_init;start_kernel;x86_64_start_reservations;x86_64_start_kernel 16.90% 0.00% swapper [kernel.kallsyms] [k] cpuidle_enter 11.23% cpuidle_enter;call_cpuidle;cpu_startup_entry;start_secondary 5.67% cpuidle_enter;call_cpuidle;cpu_startup_entry;rest_init;start_kernel;x86_64_start_reservations;x86_64_start_kernel 15.12% 0.00% swapper [kernel.kallsyms] [k] cpuidle_enter_state # The user can also select one of "count", "period" or "percent" as the first column. ... and lots of infrastructure enhancements, plus fixes and other changes, features I failed to list - see the shortlog and the git log for details" * 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (271 commits) perf evlist: Add --trace-fields option to show trace fields perf record: Store data mmaps for dwarf unwind perf libdw: Check for mmaps also in MAP__VARIABLE tree perf unwind: Check for mmaps also in MAP__VARIABLE tree perf unwind: Use find_map function in access_dso_mem perf evlist: Remove perf_evlist__(enable|disable)_event functions perf evlist: Make perf_evlist__open() open evsels with their cpus and threads (like perf record does) perf report: Show random usage tip on the help line perf hists: Export a couple of hist functions perf diff: Use perf_hpp__register_sort_field interface perf tools: Add overhead/overhead_children keys defaults via string perf tools: Remove list entry from struct sort_entry perf tools: Include all tools/lib directory for tags/cscope/TAGS targets perf script: Align event name properly perf tools: Add missing headers in perf's MANIFEST perf tools: Do not show trace command if it's not compiled in perf report: Change default to use event group view perf top: Decay periods in callchains tools lib: Move bitmap.[ch] from tools/perf/ to tools/{lib,include}/ tools lib: Sync tools/lib/find_bit.c with the kernel ...
2016-01-11Merge branch 'core-rcu-for-linus' of ↵Linus Torvalds5-23/+54
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull RCU updates from Ingo Molnar: "The changes in this cycle were: - Adding transitivity uniformly to rcu_node structure ->lock acquisitions. (This is implemented by the first two commits on top of v4.4-rc2 due to the pervasive nature of this change.) - Documentation updates, including RCU requirements. - Expedited grace-period changes. - Miscellaneous fixes. - Linked-list fixes, courtesy of KTSAN. - Torture-test updates. - Late-breaking fix to sysrq-generated crash. One thing I should note is that these pieces of documentation are fairly large files: .../RCU/Design/Requirements/Requirements.html | 2897 ++++++++++++++++++++ .../RCU/Design/Requirements/Requirements.htmlx | 2741 ++++++++++++++++++ and are written in HTML, not the usual .txt style. I hope they are fine" Paul McKenney explains the html docs: "For whatever it is worth, the reason for this unconventional choice was that attempts to do the diagrams in ASCII art failed miserably. And attempts to do ASCII art for the upcoming documentation of the data structures failed even more miserably" * 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (49 commits) sysrq: Fix warning in sysrq generated crash. list: Add lockless list traversal primitives rcu: Make rcu_gp_init() be bool rather than int rcu: Move wakeup out from under rnp->lock rcu: Fix comment for rcu_dereference_raw_notrace rcu: Don't redundantly disable irqs in rcu_irq_{enter,exit}() rcu: Make cpu_needs_another_gp() be bool rcu: Eliminate unused rcu_init_one() argument rcu: Remove TINY_RCU bloat from pointless boot parameters torture: Place console.log files correctly from the get-go torture: Abbreviate console error dump rcutorture: Print symbolic name for ->gp_state rcutorture: Print symbolic name for rcu_torture_writer_state rcutorture: Remove CONFIG_RCU_USER_QS from rcutorture selftest doc rcutorture: Default grace period to three minutes, allow override rcutorture: Dump stack when GP kthread stalls rcutorture: Flag nonexistent RCU GP kthread rcutorture: Add batch number to script printout Documentation/memory-barriers.txt: Fix ACCESS_ONCE thinko documentation: Update RCU requirements based on expedited changes ...
2016-01-10selftests/seccomp: Remove the need for HAVE_ARCH_TRACEHOOKMickaël Salaün1-3/+24
Some architectures do not implement PTRACE_GETREGSET nor PTRACE_SETREGSET (required by HAVE_ARCH_TRACEHOOK) but only implement PTRACE_GETREGS and PTRACE_SETREGS (e.g. User-mode Linux). This improve seccomp selftest portability for architectures without HAVE_ARCH_TRACEHOOK support by defining a new trigger HAVE_GETREGS. For now, this is only enabled for i386 and x86_64 architectures. This is required to be able to run this tests on User-mode Linux. Signed-off-by: Mickaël Salaün <[email protected]> Cc: Jeff Dike <[email protected]> Cc: Richard Weinberger <[email protected]> Cc: Kees Cook <[email protected]> Cc: Andy Lutomirski <[email protected]> Cc: Will Drewry <[email protected]> Cc: Shuah Khan <[email protected]> Cc: Meredydd Luff <[email protected]> Cc: David Drysdale <[email protected]> Signed-off-by: Richard Weinberger <[email protected]> Acked-by: Kees Cook <[email protected]>
2016-01-08Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds4-3/+15
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fixes from Ingo Molnar: "Two core subsystem fixes, plus a handful of tooling fixes" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf: Fix race in swevent hash perf: Fix race in perf_event_exec() perf list: Robustify event printing routine perf list: Add support for PERF_COUNT_SW_BPF_OUT perf hists browser: Fix segfault if use symbol filter in cmdline perf hists browser: Reset selection when refresh perf hists browser: Add NULL pointer check to prevent crash perf buildid-list: Fix return value of perf buildid-list -k perf buildid-list: Show running kernel build id fix
2016-01-08perf evlist: Add --trace-fields option to show trace fieldsNamhyung Kim4-1/+37
To use dynamic sort keys, it might be good to add an option to see the list of field names. $ perf evlist -i perf.data.sched sched:sched_switch sched:sched_stat_wait sched:sched_stat_sleep sched:sched_stat_iowait sched:sched_stat_runtime sched:sched_process_fork sched:sched_wakeup sched:sched_wakeup_new sched:sched_migrate_task # Tip: use 'perf evlist --trace-fields' to show fields for tracepoint events $ perf evlist -i perf.data.sched --trace-fields sched:sched_switch: trace_fields: prev_comm,prev_pid,prev_prio,prev_state,next_comm,next_pid,next_prio sched:sched_stat_wait: trace_fields: comm,pid,delay sched:sched_stat_sleep: trace_fields: comm,pid,delay sched:sched_stat_iowait: trace_fields: comm,pid,delay sched:sched_stat_runtime: trace_fields: comm,pid,runtime,vruntime sched:sched_process_fork: trace_fields: parent_comm,parent_pid,child_comm,child_pid sched:sched_wakeup: trace_fields: comm,pid,prio,success,target_cpu sched:sched_wakeup_new: trace_fields: comm,pid,prio,success,target_cpu sched:sched_migrate_task: trace_fields: comm,pid,prio,orig_cpu,dest_cpu Committer notes: For another file, in verbose mode: # perf evlist -v --trace-fields sched:sched_switch: type: 2, size: 112, config: 0x10b, { sample_period, sample_freq }: 1, sample_type: IP|TID|TIME|CPU|PERIOD|RAW, disabled: 1, inherit: 1, mmap: 1, comm: 1, task: 1, sample_id_all: 1, exclude_guest: 1, mmap2: 1, comm_exec: 1, trace_fields: prev_comm,prev_pid,prev_prio,prev_state,next_comm,next_pid,next_prio # Signed-off-by: Namhyung Kim <[email protected]> Cc: Andi Kleen <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Steven Rostedt <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lkml.kernel.org/r/[email protected] [ Replaced 'trace_fields=' with 'trace_fields: ' to make the output consistent in -v mode ] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-01-08perf record: Store data mmaps for dwarf unwindJiri Olsa1-1/+5
Currently we don't synthesize data mmap by default. It depends on -d option, that enables data address sampling. But we've seen cases (softice) where DWARF unwinder went through non executable mmaps, which we need to lookup in MAP__VARIABLE tree. Making data mmaps to be synthesized for dwarf unwind as well. Reported-by: Noel Grandin <[email protected]> Signed-off-by: Jiri Olsa <[email protected]> Cc: Adrian Hunter <[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] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-01-08perf libdw: Check for mmaps also in MAP__VARIABLE treeJiri Olsa1-0/+10
We've seen cases (softice) where DWARF unwinder went through non executable mmaps, which we need to lookup in MAP__VARIABLE tree. Reported-and-Tested-by: Noel Grandin <[email protected]> Signed-off-by: Jiri Olsa <[email protected]> Cc: Adrian Hunter <[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] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-01-08perf unwind: Check for mmaps also in MAP__VARIABLE treeJiri Olsa1-0/+9
We've seen cases (softice) where DWARF unwinder went through non executable mmaps, which we need to lookup in MAP__VARIABLE tree. Reported-and-Tested-by: Noel Grandin <[email protected]> Signed-off-by: Jiri Olsa <[email protected]> Cc: Adrian Hunter <[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] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-01-08perf unwind: Use find_map function in access_dso_memJiri Olsa1-6/+5
The find_map helper is already there, so let's use it. Also we're going to introduce wider search in following patch, so it'll be easier to make this change on single place. Signed-off-by: Jiri Olsa <[email protected]> Tested-by: Noel Grandin <[email protected]> Cc: Adrian Hunter <[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] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-01-08perf evlist: Remove perf_evlist__(enable|disable)_event functionsJiri Olsa6-54/+8
Replacing them with perf_evsel__(enable|disable). Signed-off-by: Jiri Olsa <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Noel Grandin <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-01-08perf evlist: Make perf_evlist__open() open evsels with their cpus and ↵Adrian Hunter1-1/+1
threads (like perf record does) 'perf record' uses perf_evsel__open() to open events and passes the evsel->cpus and evsel->threads. Many tests and some tools instead use perf_evlist__open() which passes instead evlist->cpus and evlist->threads. Make perf_evlist__open() follow the 'perf record' behaviour so that a consistent approach is taken. Signed-off-by: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Noel Grandin <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-01-08perf report: Show random usage tip on the help lineNamhyung Kim8-1/+58
Currently perf report only shows a help message "For a higher level overview, try: perf report --sort comm,dso" unconditionally (even if the sort keys were used). Add more help tips and show randomly. Load tips from ${prefix}/share/doc/perf-tip/tips.txt file. $ perf report | tail 0.10% swapper [kernel.vmlinux] [k] irq_exit 0.09% swapper [kernel.vmlinux] [k] flush_smp_call_function_queue 0.08% swapper [kernel.vmlinux] [k] native_write_msr_safe 0.03% swapper [kernel.vmlinux] [k] group_sched_in 0.01% perf [kernel.vmlinux] [k] native_write_msr_safe # # (Tip: Search options using a keyword: perf report -h <keyword>) # Signed-off-by: Namhyung Kim <[email protected]> Acked-by: Ingo Molnar <[email protected]> Cc: Andi Kleen <[email protected]> Cc: David Ahern <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Masami Hiramatsu <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lkml.kernel.org/r/[email protected] [ Renamed it to perf_tip() and the parameter dirname to dirpath to fix the build on older distros ] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-01-08perf hists: Export a couple of hist functionsNamhyung Kim2-7/+17
These are necessary for multi threaded sample processing: - hists__get__get_rotate_entries_in() - hists__collapse_insert_entry() - __hists__init() Signed-off-by: Namhyung Kim <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Noel Grandin <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-01-08perf diff: Use perf_hpp__register_sort_field interfaceJiri Olsa1-1/+1
Using perf_hpp__register_sort_field interface instead of directly adding the entry. Signed-off-by: Jiri Olsa <[email protected]> Acked-by: Namhyung Kim <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Noel Grandin <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-01-08perf tools: Add overhead/overhead_children keys defaults via stringJiri Olsa2-12/+39
We currently set 'overhead' and 'overhead_children' as default sort keys within perf_hpp__init function by directly adding into the sort list. This patch adds 'overhead' and 'overhead_children' in text form into sort_keys and let them be added by standard sort dimension interface. We need to eliminate dirrect sort_list additions to be able to add support for hists specific sort keys. Signed-off-by: Jiri Olsa <[email protected]> Acked-by: Namhyung Kim <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Noel Grandin <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-01-08perf tools: Remove list entry from struct sort_entryJiri Olsa1-2/+0
It's no longer needed. Signed-off-by: Jiri Olsa <[email protected]> Acked-by: Namhyung Kim <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Noel Grandin <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-01-08perf tools: Include all tools/lib directory for tags/cscope/TAGS targetsJiri Olsa1-1/+1
Besides lockdep we use all the 'tools/lib' code in perf, so include it completely in tags. Signed-off-by: Jiri Olsa <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Noel Grandin <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-01-08perf script: Align event name properlyJiri Olsa1-2/+22
Adding code to align event names, so we get aligned output in case of multiple events with different names. Before: $ perf script :13757 13757 163918.230829: cpu/mem-snp-none/P: ffff88085f20d010 :13757 13757 163918.230832: cpu/mem-loads,ldlat=30/P: 7f5a5f719f00 :13757 13757 163918.230835: cpu/mem-loads,ldlat=30/P: 7f5a5f719f00 :13758 13758 163918.230838: cpu/mem-snp-none/P: ffff88085f4ad810 :13758 13758 163918.154093: cpu/mem-stores/P: ffff88085bb53f28 :13757 13757 163918.155264: cpu/mem-snp-hitm/P: 601080 ... After: $ perf script :13757 13757 163918.228831: cpu/mem-snp-none/P: ffffffff81a841c0 :13757 13757 163918.228834: cpu/mem-loads,ldlat=30/P: 7f5a5f719f08 :13757 13757 163918.228837: cpu/mem-loads,ldlat=30/P: 7f5a5f719f08 :13758 13758 163918.228837: cpu/mem-snp-none/P: ffff88085f4ad800 :13758 13758 163918.154093: cpu/mem-stores/P: ffff88085bb53f28 :13757 13757 163918.155264: cpu/mem-snp-hitm/P: 601080 ... Signed-off-by: Jiri Olsa <[email protected]> Acked-by: David Ahern <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Noel Grandin <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-01-08perf tools: Add missing headers in perf's MANIFESTWang Nan1-0/+2
These lost headers are found in arm64 cross buildings, failing to build perf using tarballs generated using: $ make perf-targz-src-pkg Signed-off-by: Wang Nan <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Zefan Li <[email protected]> Cc: [email protected] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-01-08perf tools: Do not show trace command if it's not compiled inJiri Olsa2-1/+16
The trace command still appears in help message when you run simple 'perf' command. It's because the generate-cmdlist.sh does not care about the HAVE_LIBAUDIT_SUPPORT dependency of trace command and puts it into generated common_cmds array. Wrapping trace command under HAVE_LIBAUDIT_SUPPORT dependency, which will exclude it from common_cmds array if HAVE_LIBAUDIT_SUPPORT is not set. Signed-off-by: Jiri Olsa <[email protected]> Tested-by: Arnaldo Carvalho de Melo <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Noel Grandin <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-01-08perf report: Change default to use event group viewNamhyung Kim1-0/+1
The event group view feature is to see related events together. To use the group view, events should be recorded as a group with a dedicated syntax of surrounding events by braces (-e '{ evt1, evt2, ... }'). Also 'perf report' also requires the --group option to enable it. However it's almost always beneficial to use the group view to see the group events as it's more expressive. And I think it's more natural to see events together if they are recorded as a group. Thus this patch changes the default value to enable it. If users don't want to see like it and keep the original behavior, they can set the report.group config variable to false and/or use --no-group option in the 'perf report' command line. Requested-by: Ingo Molnar <[email protected]> Signed-off-by: Namhyung Kim <[email protected]> Cc: David Ahern <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Taeung Song <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-01-08perf top: Decay periods in callchainsNamhyung Kim3-0/+30
It missed to decay periods in callchains when decaying hist entries. This resulted in more than 100 percent overhead in callchains in the fractal style output. Reported-by: Arnaldo Carvalho de Melo <[email protected]> Signed-off-by: Namhyung Kim <[email protected]> Cc: Andi Kleen <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-01-08tools lib: Move bitmap.[ch] from tools/perf/ to tools/{lib,include}/Arnaldo Carvalho de Melo4-1/+6
So that lib/find_bit.c doesn't requires anything inside tools/perf/ Cc: Adrian Hunter <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: David Ahern <[email protected]> Cc: George Spelvin <[email protected] Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Rasmus Villemoes <[email protected]> Cc: Wang Nan <[email protected]> Cc: Yury Norov <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-01-08tools lib: Sync tools/lib/find_bit.c with the kernelArnaldo Carvalho de Melo2-54/+51
Need to move the bitmap.[ch] things from tools/perf/ to tools/lib, will be done in the next patches. Cc: Adrian Hunter <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: David Ahern <[email protected]> Cc: George Spelvin <[email protected] Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Rasmus Villemoes <[email protected]> Cc: Wang Nan <[email protected]> Cc: Yury Norov <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-01-08tools lib: Move find_next_bit.c to tools/lib/Arnaldo Carvalho de Melo4-6/+6
The commit that introduced it should've moved it to the same place, plus the 'tools/' prefix, but instead moved it to a bogus tools/lib/util/ directory, being the only file there. Move it to tools/lib/find_bit.c, picking the name for the file where these routines live since: 8f6f19dd5143 ("lib: move find_last_bit to lib/find_next_bit.c") Next step is to make tools/lib/find_bit.c to differ from lib/find_bit.c just in removing what is not used by tools/. Cc: Adrian Hunter <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: David Ahern <[email protected]> Cc: George Spelvin <[email protected] Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Rasmus Villemoes <[email protected]> Cc: Wang Nan <[email protected]> Cc: Yury Norov <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-01-07perf tests: Give a bit more information on the CQM test failure pathArnaldo Carvalho de Melo1-1/+1
Before: $ perf test -v cqm 48: Test intel cqm nmi context read : --- start --- test child forked, pid 1681 parse_events failed test child finished with -2 ---- end ---- Test intel cqm nmi context read: Skip $ After: $ perf test -v cqm 48: Test intel cqm nmi context read : --- start --- test child forked, pid 1681 parse_events failed, is "intel_cqm/llc_occupancy/" available? test child finished with -2 ---- end ---- Test intel cqm nmi context read: Skip $ Cc: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Matt Fleming <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-01-07perf tests: No need to set attr.sample_freq for tracking !PERF_RECORD_SAMPLEArnaldo Carvalho de Melo1-1/+0
We were asking for a 4kHz sample_freq, making the test fail needlessly when the system reduced /proc/sys/kernel/perf_event_max_sample_rate below that. Before: # perf test -vv dummy 23: Test using a dummy software event to keep tracking : --- start --- test child forked, pid 32421 ------------------------------------------------------------ perf_event_attr: type 1 size 112 config 0x9 { sample_period, sample_freq } 4000 sample_type IP|TID|ID|PERIOD <SNIP> sys_perf_event_open failed, error -22 Unable to open dummy and cycles event test child finished with -2 ---- end ---- Test using a dummy software event to keep tracking: Skip # [root@zoo ~]# cat /proc/sys/kernel/perf_event_max_sample_rate 1000 After: [root@zoo ~]# perf test dummy 23: Test using a dummy software event to keep tracking : Ok Cc: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-01-07perf python: Add missing files to binding link listArnaldo Carvalho de Melo1-0/+2
Fixing this problem, introduced recently: $ perf test python 16: Try 'import perf' in python, checking link problems : FAILED! In verbose mode we find out what is missing: $ perf test -v python 16: Try 'import perf' in python, checking link problems : --- start --- test child forked, pid 24894 Traceback (most recent call last): File "<stdin>", line 1, in <module> ImportError: /tmp/build/perf/python/perf.so: undefined symbol: find_next_bit test child finished with -1 ---- end ---- Try 'import perf' in python, checking link problems: FAILED! $ Cc: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Wang Nan <[email protected]> Fixes: f77b57ad4fc4 ("perf cpu_map: Add cpu_map__new_event function") Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-01-07perf test: No need for setting attr.sample_freq on the RECORD testArnaldo Carvalho de Melo1-1/+0
We're not looking at PERF_RECORD_SAMPLE entries and now by default we use PERF_COUNT_SW_DUMMY, so just remove that setting. Cc: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-01-07perf test: Use "dummy" events in the PERF_RECORD_ testArnaldo Carvalho de Melo1-1/+4
As we're test just the !PERF_RECORD_SAMPLE records. Cc: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-01-07perf evlist: Introduce perf_evlist__new_dummy constructorArnaldo Carvalho de Melo2-0/+31
For case where all we need is an evlist with just an "dummy" evsel, like in some 'perf test' entries. Cc: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-01-07perf tests: No need to set attr.sample_freq in the perf time to TSC testArnaldo Carvalho de Melo1-1/+0
We were asking for a 4kHz sample_freq, making the test fail needlessly when the system reduced /proc/sys/kernel/perf_event_max_sample_rate below that. In this test we only look at the PERF_SAMPLE_TIME fields in PERF_RECORD_ meta events, no need to set sample_freq. Thanks to Namhyung for suggesting that max_sample_rate could be the reason for the test failure, seeing the 'perf test -vv' output I sent. Before: # echo 1000 > /proc/sys/kernel/perf_event_max_sample_rate # perf test TSC 45: Test converting perf time to TSC : FAILED! After: # perf test TSC 45: Test converting perf time to TSC : Ok # cat /proc/sys/kernel/perf_event_max_sample_rate 1000 Cc: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-01-06perf pmu: fix alias->snapshot missing initialization bugStephane Eranian1-0/+1
This patch fixes a bug in __perf_pmu__new_alias() whereby the alias->snapshot field was not initialized to false. This led to random alias->snapshot value for an alias and was breaking some measurements such as: $ perf stat -a -e uncore_imc/data_reads/ -I 1000 sleep 100 Because the event ended up being treated as snapshot mode, when it is not. Signed-off-by: Stephane Eranian <[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]>
2016-01-06perf script: Add stat-cpi.py scriptJiri Olsa1-0/+77
Adding stat-cpi.py as an example of how to do stat scripting. It computes the CPI metrics from cycles and instructions events. The CPI is based performance metric showing the Cycles Per Instructions ratio, which helps to identify cycles-hungry code. Following stat record/report/script combinations could be used: - get CPI for given workload $ perf stat -e cycles,instructions record ls SNIP Performance counter stats for 'ls': 2,904,431 cycles 3,346,878 instructions # 1.15 insns per cycle 0.001782686 seconds time elapsed $ perf script -s ./scripts/python/stat-cpi.py 0.001783: cpu -1, thread -1 -> cpi 0.867803 (2904431/3346878) $ perf stat -e cycles,instructions record ls | perf script -s ./scripts/python/stat-cpi.py SNIP 0.001730: cpu -1, thread -1 -> cpi 0.869026 (2928292/3369627) - get CPI systemwide: $ perf stat -e cycles,instructions -a -I 1000 record sleep 3 # time counts unit events 1.000158618 594,274,711 cycles (100.00%) 1.000158618 441,898,250 instructions 2.000350973 567,649,705 cycles (100.00%) 2.000350973 432,669,206 instructions 3.000559210 561,940,430 cycles (100.00%) 3.000559210 420,403,465 instructions 3.000670798 780,105 cycles (100.00%) 3.000670798 326,516 instructions $ perf script -s ./scripts/python/stat-cpi.py 1.000159: cpu -1, thread -1 -> cpi 1.344823 (594274711/441898250) 2.000351: cpu -1, thread -1 -> cpi 1.311972 (567649705/432669206) 3.000559: cpu -1, thread -1 -> cpi 1.336669 (561940430/420403465) 3.000671: cpu -1, thread -1 -> cpi 2.389178 (780105/326516) $ perf stat -e cycles,instructions -a -I 1000 record sleep 3 | perf script -s ./scripts/python/stat-cpi.py 1.000202: cpu -1, thread -1 -> cpi 1.035091 (940778881/908885530) 2.000392: cpu -1, thread -1 -> cpi 1.442600 (627493992/434974455) 3.000545: cpu -1, thread -1 -> cpi 1.353612 (741463930/547766890) 3.000622: cpu -1, thread -1 -> cpi 2.642110 (784083/296764) Signed-off-by: Jiri Olsa <[email protected]> Tested-by: Arnaldo Carvalho de Melo <[email protected]> Tested-by: Kan Liang <[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] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-01-06perf script: Display stat events by defaultJiri Olsa1-0/+36
If no script is specified for stat data, display stat events in raw form. $ perf stat record ls SNIP Performance counter stats for 'ls': 0.851585 task-clock (msec) # 0.717 CPUs utilized 0 context-switches # 0.000 K/sec 0 cpu-migrations # 0.000 K/sec 114 page-faults # 0.134 M/sec 2,620,918 cycles # 3.078 GHz <not supported> stalled-cycles-frontend <not supported> stalled-cycles-backend 2,714,111 instructions # 1.04 insns per cycle 542,434 branches # 636.970 M/sec 15,946 branch-misses # 2.94% of all branches 0.001186954 seconds time elapsed $ perf script CPU THREAD VAL ENA RUN TIME EVENT -1 26185 851585 851585 851585 1186954 task-clock -1 26185 0 851585 851585 1186954 context-switches -1 26185 0 851585 851585 1186954 cpu-migrations -1 26185 114 851585 851585 1186954 page-faults -1 26185 2620918 853340 853340 1186954 cycles -1 26185 0 0 0 1186954 stalled-cycles-frontend -1 26185 0 0 0 1186954 stalled-cycles-backend -1 26185 2714111 853340 853340 1186954 instructions -1 26185 542434 853340 853340 1186954 branches -1 26185 15946 853340 853340 1186954 branch-misses Signed-off-by: Jiri Olsa <[email protected]> Tested-by: Arnaldo Carvalho de Melo <[email protected]> Tested-by: Kan Liang <[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] [ Rename 'time' parameter to 'tstamp' to fix build on older distros ] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-01-06perf cpumap: Fix cpu conversion in cpu_map__from_entriesJiri Olsa1-2/+11
We can't convert u16 cpu_map_entries::cpu[x] value directly to int, because it could hold -1, which would be converted as 65535. Adding special treatment for -1, which is not real cpu number, to be converted to (int -1). Reported-by: Arnaldo Carvalho de Melo <[email protected]> Signed-off-by: Jiri Olsa <[email protected]> Cc: David Ahern <[email protected]> Cc: Kan Liang <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-01-06perf script: Add python support for stat eventsJiri Olsa1-6/+109
Add support to get stat events data in perf python scripts. The python script shall implement the following new interface to process stat data: def stat__<event_name>_[<modifier>](cpu, thread, time, val, ena, run): - is called for every stat event for given counter, if user monitors 'cycles,instructions:u" following callbacks should be defined: def stat__cycles(cpu, thread, time, val, ena, run): def stat__instructions_u(cpu, thread, time, val, ena, run): def stat__interval(time): - is called for every interval with its time, in non interval mode it's called after last stat event with total measured time in ns The rest of the current interface stays untouched.. Please check example CPI metrics script in following patch with command line examples in changelogs. Signed-off-by: Jiri Olsa <[email protected]> Tested-by: Kan Liang <[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] [ Rename 'time' parameters to 'tstamp', to fix the build in older distros ] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-01-06perf script: Add stat default handlersJiri Olsa1-0/+33
Implement struct scripting_ops::(process_stat|process_stat_interval) handlers - calling scripting handlers from stat events handlers. Signed-off-by: Jiri Olsa <[email protected]> Tested-by: Kan Liang <[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] [ Rename 'time' parameters to 'tstamp', to fix the build in older distros ] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-01-06perf script: Add process_stat/process_stat_interval scripting interfaceJiri Olsa1-0/+4
Python and perl scripting code will define those callbacks and get stat data. Signed-off-by: Jiri Olsa <[email protected]> Tested-by: Kan Liang <[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] [ Rename 'time' parameters to 'tstamp', to fix the build in older distros ] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-01-06perf script: Process stat config eventJiri Olsa1-0/+10
Adding processing of stat config event and initialize stat_config object. Signed-off-by: Jiri Olsa <[email protected]> Tested-by: Kan Liang <[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] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-01-06perf script: Process cpu/threads mapsJiri Olsa1-0/+67
Adding processing of cpu/threads maps. Configuring session's evlist with these maps. Signed-off-by: Jiri Olsa <[email protected]> Tested-by: Kan Liang <[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] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-01-06perf stat record: Keep sample_type 0 for pipe sessionJiri Olsa1-1/+8
For pipe sessions we need to keep sample_type zero, because script's perf_evsel__check_attr is triggered by sample_type != 0, and the check would fail on stat session. I was tempted to keep it zero unconditionally, but the pipe session is sufficient. In perf.data session we are guarded by HEADER_STAT feature. Signed-off-by: Jiri Olsa <[email protected]> Cc: David Ahern <[email protected]> Cc: Kan Liang <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-01-06perf report: Add documentation for dynamic sort keysNamhyung Kim1-0/+24
Signed-off-by: Namhyung Kim <[email protected]> Acked-by: Jiri Olsa <[email protected]> Cc: Andi Kleen <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Steven Rostedt <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-01-06perf tools: Add all matching dynamic sort keys for field nameNamhyung Kim1-16/+32
When a perf.data file has multiple events, it's likely to be similar (tracepoint) events. In that case, they might have same field name so add all of them to sort keys instead of bailing out. Signed-off-by: Namhyung Kim <[email protected]> Acked-by: Jiri Olsa <[email protected]> Cc: Andi Kleen <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Steven Rostedt <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-01-06perf build: Use FEATURE-DUMP in bpf subprojectJiri Olsa2-1/+5
Using FEATURE-DUMP in bpf subproject for features detection in case bpf is built via perf. Keeping the current features detection otherwise. Signed-off-by: Jiri Olsa <[email protected]> Tested-by: Wang Nan <[email protected]> Cc: David Ahern <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Zefan Li <[email protected]> Cc: pi3orama <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-01-06tools build feature: Use value assignment form for FEATURE-DUMP fileJiri Olsa1-5/+21
Changing the contents of the FEATURE-DUMP file, so it looks like: feature-backtrace=1 feature-dwarf=0 feature-fortify-source=1 feature-sync-compare-and-swap=0 This way it could get included in sub projects, so they won't be forced to redo features detection. Also now storing the complete set of features. Signed-off-by: Jiri Olsa <[email protected]> Tested-by: Wang Nan <[email protected]> Cc: David Ahern <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Zefan Li <[email protected]> Cc: pi3orama <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-01-06tools build feature: Introduce feature_assign macroJiri Olsa1-1/+7
The feature_assign macro generates feature value assignment for name, like: $(call feature_assign,dwarf) == feature-dwarf=1 This will be used more in following patches. Signed-off-by: Jiri Olsa <[email protected]> Tested-by: Wang Nan <[email protected]> Cc: David Ahern <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Zefan Li <[email protected]> Cc: pi3orama <[email protected]> Link: http://lkml.kernel.org/r/[email protected] [ Rename it to feature_assign, the original shorter name was misleading, to say the least ;-) ] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-01-06tools build feature: Move dwarf post unwind choice output into perfJiri Olsa2-9/+4
We decide what dwarf unwind to choose way after the Makefile.feature makefile is included. The $(dwarf-post-unwind) is not even set at that time. For the same reason it was never included in FEATURE-DUMP file. Moving it into perf VF=1 verbose display. $ make VF=1 BUILD: Doing 'make -j4' parallel build Auto-detecting system features: ... dwarf: [ on ] ... ... LIBUNWIND_DIR: ... LIBDW_DIR: ... DWARF post unwind library: libunwind ... Signed-off-by: Jiri Olsa <[email protected]> Tested-by: Wang Nan <[email protected]> Cc: David Ahern <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Zefan Li <[email protected]> Cc: pi3orama <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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