lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
c6264deff7
linux-kernel-test/tools/perf
History
Ingo Molnar c6264deff7 perf stat: Add -d/--detailed flag to run with a lot of events 
Add the new -d/--detailed flag, which generates a pretty detailed event list:

 Performance counter stats for './hackbench 10' (10 runs):

       1514.287888 task-clock               #   10.897 CPUs utilized            ( +-  3.05% )
            39,698 context-switches         #    0.026 M/sec                    ( +- 12.19% )
             8,147 CPU-migrations           #    0.005 M/sec                    ( +- 16.55% )
            17,918 page-faults              #    0.012 M/sec                    ( +-  0.37% )
     2,944,504,050 cycles                   #    1.944 GHz                      ( +-  3.89% )  (32.60%)
     1,043,971,283 stalled-cycles           #   35.45% of all cycles are idle   ( +-  5.22% )  (44.48%)
     1,655,906,768 instructions             #    0.56  insns per cycle
                                            #    0.63  stalled cycles per insn  ( +-  1.95% )  (55.09%)
       338,832,373 branches                 #  223.757 M/sec                    ( +-  1.96% )  (64.47%)
         3,892,416 branch-misses            #    1.15% of all branches          ( +-  5.49% )  (73.12%)
       606,410,482 L1-dcache-loads          #  400.459 M/sec                    ( +-  1.29% )  (71.21%)
        31,204,395 L1-dcache-load-misses    #    5.15% of all L1-dcache hits    ( +-  3.04% )  (60.43%)
         3,922,751 LLC-loads                #    2.590 M/sec                    ( +-  6.80% )  (46.87%)
         5,037,288 LLC-load-misses          #    3.327 M/sec                    ( +-  3.56% )  (13.00%)

        0.138966828  seconds time elapsed  ( +-  4.11% )

This can be used "at a glance" for narrower analysis.

-d can also be used in addition to other -e events, to further expand an event list.

Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Link: http://lkml.kernel.org/n/tip-cxs98quixs3qyvdqx3goojc4@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-04-26 21:03:16 +02:00
..
arch [S390] perf: add DWARF register lookup for s390 2011-01-05 12:47:31 +01:00
bench perf tool: Fix gcc 4.6.0 issues 2011-02-07 12:41:41 -02:00
config perf tools: git mv tools/perf/{features-tests.mak,config/} 2011-04-19 08:18:36 -03:00
Documentation perf script: Add more documentation about the -f/--fields parameters 2011-03-30 15:30:43 -03:00
python perf evlist: Store pointer to the cpu and thread maps 2011-01-31 12:40:52 -02:00
scripts perf script: Finish the rename from trace to script 2010-12-25 11:29:02 -02:00
util perf stat: Add stalled cycles to the default output 2011-04-26 20:04:57 +02:00
.gitignore perf tools: Makefile: Remove various and sundry cruft 2011-02-18 07:43:06 -02:00
builtin-annotate.c perf session: Pass evsel in event_ops->sample() 2011-03-23 19:28:58 -03:00
builtin-bench.c perf options: Type check all the remaining OPT_ variants 2010-05-17 16:22:41 -03:00
builtin-buildid-cache.c perf buildid: add perfconfig option to specify buildid cache dir 2010-06-05 09:34:04 -03:00
builtin-buildid-list.c Merge commit 'v2.6.37-rc8' into perf/core 2011-01-04 08:08:54 +01:00
builtin-diff.c perf session: Pass evsel in event_ops->sample() 2011-03-23 19:28:58 -03:00
builtin-evlist.c perf evlist: New command to list the names of events present in a perf.data file 2011-03-15 11:10:48 -03:00
builtin-help.c perf options: Type check all the remaining OPT_ variants 2010-05-17 16:22:41 -03:00
builtin-inject.c perf session: Pass evsel in event_ops->sample() 2011-03-23 19:28:58 -03:00
builtin-kmem.c perf session: Pass evsel in event_ops->sample() 2011-03-23 19:28:58 -03:00
builtin-kvm.c perf options: Type check all the remaining OPT_ variants 2010-05-17 16:22:41 -03:00
builtin-list.c perf list: Allow filtering list of events 2011-02-17 15:38:58 -02:00
builtin-lock.c perf session: Pass evsel in event_ops->sample() 2011-03-23 19:28:58 -03:00
builtin-probe.c perf probe: Use %td for pointer arithmetic result 2011-01-31 19:45:38 -02:00
builtin-record.c perf evsel: Fix use of inherit 2011-04-15 12:52:28 -03:00
builtin-report.c perf session: Pass evsel in event_ops->sample() 2011-03-23 19:28:58 -03:00
builtin-sched.c perf session: Pass evsel in event_ops->sample() 2011-03-23 19:28:58 -03:00
builtin-script.c perf script: improve validation of sample attributes for output fields 2011-04-20 07:27:52 -03:00
builtin-stat.c perf stat: Add -d/--detailed flag to run with a lot of events 2011-04-26 21:03:16 +02:00
builtin-test.c perf evsel: Fix use of inherit 2011-04-15 12:52:28 -03:00
builtin-timechart.c perf session: Pass evsel in event_ops->sample() 2011-03-23 19:28:58 -03:00
builtin-top.c perf evsel: Fix use of inherit 2011-04-15 12:52:28 -03:00
builtin.h perf evlist: New command to list the names of events present in a perf.data file 2011-03-15 11:10:48 -03:00
command-list.txt perf evlist: New command to list the names of events present in a perf.data file 2011-03-15 11:10:48 -03:00
CREDITS perf_counter tools: Add CREDITS file for Git contributors 2009-06-24 19:54:29 +02:00
design.txt perf: Fix few typos + cosmetics 2010-01-13 17:39:44 +01:00
Makefile perf tools: git mv tools/perf/{features-tests.mak,config/} 2011-04-19 08:18:36 -03:00
MANIFEST perf packaging: add memcpy to perf MANIFEST 2010-11-30 23:00:10 -02:00
perf-archive.sh perf buildid: add perfconfig option to specify buildid cache dir 2010-06-05 09:34:04 -03:00
perf.c perf evlist: New command to list the names of events present in a perf.data file 2011-03-15 11:10:48 -03:00
perf.h perf record: Move perf_mmap__write_tail to perf.h 2011-01-22 19:56:29 -02:00