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linux/tools/perf
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Jiri Olsa 863e451f69 perf diff: Make diff command work with evsel hists 
Putting 'perf diff' command back on track with the 'latest'
evsel hists changes. Each evsel has its own 'hists' object
gathering stats for the particular event.

While currently counts are accumulated for the whole session
regardless of the events diversification within compared
sessions.

The 'perf diff' command now outputs all matching events within
compared sessions (with event name specified). The per event
diff output stays the same.

  $ ./perf diff
  # Event 'cycles'
  #
  # Baseline  Delta          Shared Object                          Symbol
  # ........ ..........  .................  ..............................
  #
       0.00%    +15.14%  [kernel.kallsyms]  [k] __wake_up
       0.00%    +13.38%  [kernel.kallsyms]  [k] ext4fs_dirhash

... SNIP

       0.00%     +0.42%  [kernel.kallsyms]  [k] local_clock
       0.17%     -0.05%  [kernel.kallsyms]  [k] native_write_msr_safe

  # Event 'faults'
  #
  # Baseline  Delta          Shared Object                          Symbol
  # ........ ..........  .................  ..............................
  #
       0.00%    +79.12%  ld-2.15.so         [.] _dl_relocate_object
       0.00%    +11.62%  ld-2.15.so         [.] openaux

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1346946426-13496-2-git-send-email-jolsa@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-07 21:44:02 -03:00
..
arch perf tools: Support for DWARF CFI unwinding on post processing 2012-08-11 15:06:56 -03:00
bench perf bench: Fix confused variable namings and descriptions in mem subsystem 2012-07-02 14:35:45 -03:00
config perf tools: Add libunwind dependency for DWARF CFI unwinding 2012-08-10 16:46:07 -03:00
Documentation perf diff: Make diff command work with evsel hists 2012-09-07 21:44:02 -03:00
python perf python: Use attr.watermark in twatch.py 2012-01-30 18:38:23 -02:00
scripts perf script python: Correct handler check and spelling errors 2012-08-09 13:26:19 -03:00
ui perf hists: Rename and move some functions 2012-08-20 09:47:31 -03:00
util perf diff: Make diff command work with evsel hists 2012-09-07 21:44:02 -03:00
.gitignore perf tools: Ignore compiled python binaries 2012-09-07 12:10:58 -03:00
bash_completion perf tools: Support for events bash completion 2012-08-09 15:59:26 -03:00
builtin-annotate.c perf tools: Allow user to indicate path to objdump in command line 2012-09-05 19:41:55 -03:00
builtin-bench.c perf bench: Documentation update 2012-06-27 13:17:48 -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 perf symbols: Introduce symbol__elf_init() 2012-08-09 16:19:14 -03:00
builtin-diff.c perf diff: Make diff command work with evsel hists 2012-09-07 21:44:02 -03:00
builtin-evlist.c perf tools: Move all users of event_name to perf_evsel__name 2012-06-19 13:06:20 -03:00
builtin-help.c perf help: Remove use of die and handle errors 2012-09-05 17:21:10 -03:00
builtin-inject.c perf symbols: Support minimal build without libelf 2012-08-09 16:26:38 -03:00
builtin-kmem.c perf kmem: Use evsel->tp_format and perf_sample 2012-08-07 23:44:20 -03:00
builtin-kvm.c perf kvm: Do guest-only counting by default 2012-01-06 15:47:37 -02:00
builtin-list.c perf tools: Support for events bash completion 2012-08-09 15:59:26 -03:00
builtin-lock.c perf lock: Remove use of die and handle errors 2012-09-05 17:19:38 -03:00
builtin-probe.c perf probe: Detect probe target when m/x options are absent 2012-05-11 13:58:53 -03:00
builtin-record.c perf record: Remove use of die/exit 2012-09-05 17:22:41 -03:00
builtin-report.c perf tools: Allow user to indicate path to objdump in command line 2012-09-05 19:41:55 -03:00
builtin-sched.c perf sched: Use perf_sample 2012-08-07 23:46:19 -03:00
builtin-script.c perf script: Remove use of die/exit 2012-09-05 17:21:39 -03:00
builtin-stat.c perf stat: Remove use of die/exit and handle errors 2012-09-05 17:20:24 -03:00
builtin-test.c perf test: Add roundtrip test for hardware cache events 2012-09-06 14:55:44 -03:00
builtin-timechart.c perf report: Accept fifos as input file 2011-12-23 17:01:03 -02:00
builtin-top.c perf evlist: Introduce evsel list accessors 2012-08-15 10:14:18 -03:00
builtin.h perf tools: Make perf.data more self-descriptive (v8) 2011-10-07 17:01:24 -03:00
command-list.txt perf symbols: Support minimal build without libelf 2012-08-09 16:26:38 -03:00
CREDITS
design.txt perf tools: Update ioctl documentation for PERF_IOC_FLAG_GROUP 2012-05-31 11:38:42 -03:00
Makefile perf tools: Clean target should do clean for lib/traceevent too 2012-09-06 10:47:29 -03:00
MANIFEST perf tools: Fix make tarballs 2012-05-30 15:05:59 -03:00
perf-archive.sh perf archive: Correct cutting of symbolic link 2012-04-14 13:52:15 -03:00
perf.c perf symbols: Support minimal build without libelf 2012-08-09 16:26:38 -03:00
perf.h perf tools: Support for DWARF mode callchain 2012-08-11 15:07:18 -03:00