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2016-10-03perf list: Support long jevents descriptionsSukadev Bhattiprolu1-5/+11
Previously we were dropping the useful longer descriptions that some events have in the event list completely. This patch makes them appear with perf list. Old perf list: baclears: baclears.all [Counts the number of baclears] vs new: perf list -v: ... baclears: baclears.all [The BACLEARS event counts the number of times the front end is resteered, mainly when the Branch Prediction Unit cannot provide a correct prediction and this is corrected by the Branch Address Calculator at the front end. The BACLEARS.ANY event counts the number of baclears for any type of branch] Signed-off-by: Andi Kleen <[email protected]> Signed-off-by: Sukadev Bhattiprolu <[email protected]> Acked-by: Ingo Molnar <[email protected]> Acked-by: Jiri Olsa <[email protected]> Cc: Madhavan Srinivasan <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: [email protected] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-10-03perf list: Add a --no-desc flagAndi Kleen1-5/+9
Add a --no-desc flag to 'perf list' to not print the event descriptions that were earlier added for JSON events. This may be useful to get a less crowded listing. It's still default to print descriptions as that is the more useful default for most users. Signed-off-by: Andi Kleen <[email protected]> Signed-off-by: Sukadev Bhattiprolu <[email protected]> Acked-by: Ingo Molnar <[email protected]> Acked-by: Jiri Olsa <[email protected]> Tested-by: Arnaldo Carvalho de Melo <[email protected]> Cc: [email protected] Cc: Madhavan Srinivasan <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-07-13perf list: Show SDT and pre-cached eventsMasami Hiramatsu1-1/+5
Show SDT and pre-cached events by perf-list with "sdt". This also shows the binary and build-id where the events are placed only when there are same name events on different binaries. e.g.: # perf list sdt List of pre-defined events (to be used in -e): sdt_libc:lll_futex_wake [SDT event] sdt_libc:lll_lock_wait_private [SDT event] sdt_libc:longjmp [SDT event] sdt_libc:longjmp_target [SDT event] ... sdt_libstdcxx:rethrow@/usr/bin/gcc(0cc207fc4b27) [SDT event] sdt_libstdcxx:rethrow@/usr/lib64/libstdc++.so.6.0.20(91c7a88fdf49) sdt_libstdcxx:throw@/usr/bin/gcc(0cc207fc4b27) [SDT event] sdt_libstdcxx:throw@/usr/lib64/libstdc++.so.6.0.20(91c7a88fdf49) The binary path and build-id are shown in below format; <GROUP>:<EVENT>@<PATH>(<BUILD-ID>) Signed-off-by: Masami Hiramatsu <[email protected]> Signed-off-by: Masami Hiramatsu <[email protected]> Tested-by: Arnaldo Carvalho de Melo <[email protected]> Cc: Ananth N Mavinakayanahalli <[email protected]> Cc: Brendan Gregg <[email protected]> Cc: Hemant Kumar <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/20160624090646.25421.44225.stgit@devbox Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2015-12-17perf subcmd: Create subcmd libraryJosh Poimboeuf1-1/+1
Move the subcommand-related files from perf to a new library named libsubcmd.a. Since we're moving files anyway, go ahead and rename 'exec_cmd.*' to 'exec-cmd.*' to be consistent with the naming of all the other files. Signed-off-by: Josh Poimboeuf <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/c0a838d4c878ab17fee50998811612b2281355c1.1450193761.git.jpoimboe@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2015-10-01perf list: Do event name substring search as last resort when no events foundArnaldo Carvalho de Melo1-2/+16
Before: # perf list _alloc_ | head -10 # After: # perf list _alloc_ | head -10 ext4:ext4_alloc_da_blocks [Tracepoint event] ext4:ext4_get_implied_cluster_alloc_exit [Tracepoint event] kmem:kmem_cache_alloc_node [Tracepoint event] kmem:mm_page_alloc_extfrag [Tracepoint event] kmem:mm_page_alloc_zone_locked [Tracepoint event] xen:xen_mmu_alloc_ptpage [Tracepoint event] # And it works for all types of events: # perf list br List of pre-defined events (to be used in -e): branch-instructions OR branches [Hardware event] branch-misses [Hardware event] branch-load-misses [Hardware cache event] branch-loads [Hardware cache event] branch-instructions OR cpu/branch-instructions/ [Kernel PMU event] branch-misses OR cpu/branch-misses/ [Kernel PMU event] filelock:break_lease_block [Tracepoint event] filelock:break_lease_noblock [Tracepoint event] filelock:break_lease_unblock [Tracepoint event] syscalls:sys_enter_brk [Tracepoint event] syscalls:sys_exit_brk [Tracepoint event] # Suggested-by: Ingo Molnar <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2015-09-30perf list: Remove blank lines, headers when piping outputArnaldo Carvalho de Melo1-1/+1
So that one can, for instance, use it with wc -l: # perf list *:*write* | wc -l 60 Or to look for the "bio" tracepoints, without 'perf list' headers: # perf list *:*bio* | head block:block_bio_backmerge [Tracepoint event] block:block_bio_bounce [Tracepoint event] block:block_bio_complete [Tracepoint event] block:block_bio_frontmerge [Tracepoint event] block:block_bio_queue [Tracepoint event] block:block_bio_remap [Tracepoint event] # Cc: Adrian Hunter <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2015-02-27perf list: Extend raw-dump to certain kind of eventsYunlong Song1-13/+8
Extend 'perf list --raw-dump' to 'perf list --raw-dump [hw|sw|cache |tracepoint|pmu|event_glob]' in order to show the raw-dump of a certain kind of events rather than all of the events. Example: Before this patch: $ perf list --raw-dump hw branch-instructions branch-misses bus-cycles cache-misses cache-references cpu-cycles instructions stalled-cycles-backend stalled-cycles-frontend alignment-faults context-switches cpu-clock cpu-migrations emulation-faults major-faults minor-faults page-faults task-clock ... ... writeback:writeback_thread_start writeback:writeback_thread_stop writeback:writeback_wait_iff_congested writeback:writeback_wake_background writeback:writeback_wake_thread As shown above, all of the events are printed. After this patch: $ perf list --raw-dump hw branch-instructions branch-misses bus-cycles cache-misses cache-references cpu-cycles instructions stalled-cycles-backend stalled-cycles-frontend As shown above, only the hw events are printed. Signed-off-by: Yunlong Song <[email protected]> Tested-by: Arnaldo Carvalho de Melo <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2015-02-27perf list: Clean up the printing functions of hardware/software eventsYunlong Song1-2/+4
Do not need print_events_type or __print_events_type for listing hw/sw events, let print_symbol_events do its job instead. Moreover, print_symbol_events can also handle event_glob and name_only. Signed-off-by: Yunlong Song <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2015-02-27perf list: Allow listing events with 'tracepoint' prefixYunlong Song1-3/+1
If somebody happens to name an event with the beginning of 'tracepoint' (e.g. tracepoint_foo), then it will never be showed with perf list event_glob, thus we parse the argument 'tracepoint' more carefully for accuracy. Example: Before this patch: $ perf list tracepoint_foo:* jbd2:jbd2_start_commit [Tracepoint event] jbd2:jbd2_commit_locking [Tracepoint event] jbd2:jbd2_run_stats [Tracepoint event] block:block_rq_issue [Tracepoint event] block:block_bio_complete [Tracepoint event] block:block_bio_backmerge [Tracepoint event] block:block_getrq [Tracepoint event] ... ... As shown above, all of the tracepoint events are printed. In fact, the command's real intention is to print the events of tracepoint_foo. After this patch: $ perf list tracepoint_foo:* tracepoint_foo:tp_foo_enter [Tracepoint event] tracepoint_foo:tp_foo_exit [Tracepoint event] As shown above, only the events of tracepoint_foo are printed. Signed-off-by: Yunlong Song <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2015-02-13perf list: Place the header text in its right positionYunlong Song1-0/+3
The hearer text 'List of pre-defined events (to be used in -e):' is placed in an improper function, which causes an abnormal output, e.g. 'perf list hw' shows no guiding text at all, and 'perf list hw L1-dcache*' shows the guiding text incorrectly in the middle of the output. Example Before this patch: $ perf list hw L1-dcache* branch-instructions OR branches [Hardware event] branch-misses [Hardware event] bus-cycles [Hardware event] cache-misses [Hardware event] cache-references [Hardware event] cpu-cycles OR cycles [Hardware event] instructions [Hardware event] stalled-cycles-backend OR idle-cycles-backend [Hardware event] stalled-cycles-frontend OR idle-cycles-frontend [Hardware event] List of pre-defined events (to be used in -e): <-- incorrect position L1-dcache-load-misses [Hardware cache event] L1-dcache-loads [Hardware cache event] L1-dcache-prefetch-misses [Hardware cache event] L1-dcache-prefetches [Hardware cache event] L1-dcache-store-misses [Hardware cache event] L1-dcache-stores [Hardware cache event] After this patch: $ perf list hw L1-dcache* List of pre-defined events (to be used in -e): <-- correct position branch-instructions OR branches [Hardware event] branch-misses [Hardware event] bus-cycles [Hardware event] cache-misses [Hardware event] cache-references [Hardware event] cpu-cycles OR cycles [Hardware event] instructions [Hardware event] stalled-cycles-backend OR idle-cycles-backend [Hardware event] stalled-cycles-frontend OR idle-cycles-frontend [Hardware event] L1-dcache-load-misses [Hardware cache event] L1-dcache-loads [Hardware cache event] L1-dcache-prefetch-misses [Hardware cache event] L1-dcache-prefetches [Hardware cache event] L1-dcache-store-misses [Hardware cache event] L1-dcache-stores [Hardware cache event] Signed-off-by: Yunlong Song <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2015-01-02perf list: Fix --raw-dump optionTaesoo Kim1-3/+10
Currently, 'perf list --raw-dump' requires extra arguments (e.g., hw) to invoke, which breaks bash/zsh completion (perf-completion.sh). $ perf list --raw-dump Error: unknown option `raw-dump' usage: perf list [hw|sw|cache|tracepoint|pmu|event_glob] After, $ perf list --raw-dump cpu-cycles instructions cache-references cache-misses ... Signed-off-by: Taesoo Kim <[email protected]> Acked-by: Namhyung Kim <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Taesoo kim <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2013-11-05perf list: Add usageDavid Ahern1-3/+14
Currently 'perf list' is not very helpful if you forget the syntax: $ perf list -h List of pre-defined events (to be used in -e): After: $ perf list -h usage: perf list [hw|sw|cache|tracepoint|pmu|event_glob] Signed-off-by: David Ahern <[email protected]> Acked-by: Ingo Molnar <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2013-11-05perf list: Remove a level of indentationDavid Ahern1-36/+37
With a return after the if check an indentation level can be removed. Indentation shift only; no functional changes. Signed-off-by: David Ahern <[email protected]> Acked-by: Ingo Molnar <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2013-07-12perf list: List kernel supplied event aliasesAndi Kleen1-0/+3
List the kernel supplied pmu event aliases in perf list It's better when the users can actually see them. Signed-off-by: Andi Kleen <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2012-09-11perf tools: Use __maybe_used for unused variablesIrina Tirdea1-1/+1
perf defines both __used and __unused variables to use for marking unused variables. The variable __used is defined to __attribute__((__unused__)), which contradicts the kernel definition to __attribute__((__used__)) for new gcc versions. On Android, __used is also defined in system headers and this leads to warnings like: warning: '__used__' attribute ignored __unused is not defined in the kernel and is not a standard definition. If __unused is included everywhere instead of __used, this leads to conflicts with glibc headers, since glibc has a variables with this name in its headers. The best approach is to use __maybe_unused, the definition used in the kernel for __attribute__((unused)). In this way there is only one definition in perf sources (instead of 2 definitions that point to the same thing: __used and __unused) and it works on both Linux and Android. This patch simply replaces all instances of __used and __unused with __maybe_unused. Signed-off-by: Irina Tirdea <[email protected]> Acked-by: Pekka Enberg <[email protected]> Cc: David Ahern <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Steven Rostedt <[email protected]> Link: http://lkml.kernel.org/r/[email protected] [ committer note: fixed up conflict with a116e05 in builtin-sched.c ] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2012-08-09perf tools: Support for events bash completionFrederic Weisbecker1-6/+8
Add basic bash completion for the -e option in record, top and stat subcommands. Only hardware, software and tracepoint events are supported. Breakpoints, raw events and events grouping completion need more thinking. Signed-off-by: Frederic Weisbecker <[email protected]> Cc: David Ahern <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2011-02-17perf list: Allow filtering list of eventsArnaldo Carvalho de Melo1-2/+41
The man page has the details, here are some examples: [root@emilia ~]# perf list *fault* *:*wait* List of pre-defined events (to be used in -e): page-faults OR faults [Software event] minor-faults [Software event] major-faults [Software event] alignment-faults [Software event] emulation-faults [Software event] radeon:radeon_fence_wait_begin [Tracepoint event] radeon:radeon_fence_wait_end [Tracepoint event] writeback:wbc_writeback_wait [Tracepoint event] writeback:wbc_balance_dirty_wait [Tracepoint event] writeback:writeback_congestion_wait [Tracepoint event] writeback:writeback_wait_iff_congested [Tracepoint event] sched:sched_wait_task [Tracepoint event] sched:sched_process_wait [Tracepoint event] sched:sched_stat_wait [Tracepoint event] sched:sched_stat_iowait [Tracepoint event] syscalls:sys_enter_epoll_wait [Tracepoint event] syscalls:sys_exit_epoll_wait [Tracepoint event] syscalls:sys_enter_epoll_pwait [Tracepoint event] syscalls:sys_exit_epoll_pwait [Tracepoint event] syscalls:sys_enter_rt_sigtimedwait [Tracepoint event] syscalls:sys_exit_rt_sigtimedwait [Tracepoint event] syscalls:sys_enter_waitid [Tracepoint event] syscalls:sys_exit_waitid [Tracepoint event] syscalls:sys_enter_wait4 [Tracepoint event] syscalls:sys_exit_wait4 [Tracepoint event] syscalls:sys_enter_waitpid [Tracepoint event] syscalls:sys_exit_waitpid [Tracepoint event] [root@emilia ~]# Suggested-by: Ingo Molnar <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Mike Galbraith <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Tom Zanussi <[email protected]> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2009-08-13perf list: Fix large list output by using the pagerArnaldo Carvalho de Melo1-1/+2
When /sys/kernel/debug is mounted the list can be imense, so use the pager like the other tools. Signed-off-by: Arnaldo Carvalho de Melo <[email protected]> Acked-by: Frederic Weisbecker <[email protected]> Cc: Peter Zijlstra <[email protected]> LKML-Reference: <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2009-07-01perf_counter tools: Add more warnings and fix/annotate themIngo Molnar1-1/+1
Enable -Wextra. This found a few real bugs plus a number of signed/unsigned type mismatches/uncleanlinesses. It also required a few annotations All things considered it was still worth it so lets try with this enabled for now. Cc: Peter Zijlstra <[email protected]> Cc: Mike Galbraith <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Arnaldo Carvalho de Melo <[email protected]> Cc: Frederic Weisbecker <[email protected]> LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <[email protected]>
2009-06-06perf_counter tools: Move from Documentation/perf_counter/ to tools/perf/Ingo Molnar1-0/+20
Several people have suggested that 'perf' has become a full-fledged tool that should be moved out of Documentation/. Move it to the (new) tools/ directory. Cc: Peter Zijlstra <[email protected]> Cc: Mike Galbraith <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Arnaldo Carvalho de Melo <[email protected]> LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <[email protected]>