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09623d7946
linux/tools/perf
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Kan Liang 09623d7946 perf hists: Clear dummy entry accumulated period 
The accumulated period for dummy entry should also be 0.  Otherwise, the
total overhead could be overcounted.

  $ perf record -e '{LLC-load-misses,cpu/instructions/}' --call-graph=lbr ./tchain
  $ perf report --stdio
  # To display the perf.data header info, please use --header/--header-only options.
  #
  # Total Lost Samples: 0
  #
  # Samples: 21K of event 'anon group { LLC-load-misses, cpu/instructions/ }'
  # Event count (approx.): 16313667937
  #
  #         Children              Self  Command      Shared Object     Symbol
  # ................  ................  ...........  ................  ............................
  #
    4769.98%   0.01%     0.00%   0.01%  tchain_edit  [kernel.vmlinux]  [k] update_fast_timekeeper
    4356.18%   0.01%     0.00%   0.01%  tchain_edit  [kernel.vmlinux]  [k] trigger_load_balance
    3181.12%   0.01%     0.00%   0.01%  tchain_edit  [kernel.vmlinux]  [k] irq_work_tick
    1592.37%   0.00%     0.00%   0.00%  tchain_edit  [kernel.vmlinux]  [k] cpu_needs_another_gp

Signed-off-by: Kan Liang <kan.liang@intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/1461565689-5862-1-git-send-email-kan.liang@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-04-25 20:35:59 -03:00
..
arch perf tools: Make the x86 clean quiet 2016-04-25 17:56:15 -03:00
bench perf bench futex: Simplify wrapper for LOCK_PI 2016-04-25 20:24:26 -03:00
config perf tools: Build syscall table .c header from kernel's syscall_64.tbl 2016-04-08 09:58:14 -03:00
Documentation perf trace: Bump --mmap-pages when --call-graph is used by the root user 2016-04-15 17:52:34 -03:00
jvmti perf jit: Add support for using TSC as a timestamp 2016-04-01 18:42:55 -03:00
python
scripts perf script: Fix postgresql ubuntu install instructions 2016-04-19 12:36:54 -03:00
tests perf tests: Replace assignment with comparison on assert check 2016-04-25 20:24:26 -03:00
trace perf trace: Move socket_type beautifier to tools/perf/trace/beauty/ 2016-04-14 13:53:10 -03:00
ui perf hists browser: Fold two consecutive symbol_conf.use_callchain ifs 2016-04-18 12:26:27 -03:00
util perf hists: Clear dummy entry accumulated period 2016-04-25 20:35:59 -03:00
.gitignore
Build
builtin-annotate.c perf machine: Rename perf_event__preprocess_sample to machine__resolve 2016-03-23 12:03:08 -03:00
builtin-bench.c
builtin-buildid-cache.c
builtin-buildid-list.c
builtin-config.c perf config: Make show_config() use perf_config_set 2016-04-14 09:15:47 -03:00
builtin-data.c
builtin-diff.c perf machine: Rename perf_event__preprocess_sample to machine__resolve 2016-03-23 12:03:08 -03:00
builtin-evlist.c
builtin-help.c perf help: Use asprintf instead of adhoc equivalents 2016-03-23 16:36:07 -03:00
builtin-inject.c perf tools: Add time conversion event 2016-03-31 10:52:24 -03:00
builtin-kmem.c perf callchain: Start moving away from global per thread cursors 2016-04-14 14:48:07 -03:00
builtin-kvm.c perf evsel: Do not use globals in config() 2016-04-11 22:18:20 -03:00
builtin-list.c
builtin-lock.c
builtin-mem.c perf mem: Add -U/-K (--all-user/--all-kernel) options 2016-03-30 11:14:07 -03:00
builtin-probe.c
builtin-record.c perf tools: Ditch record_opts.callgraph_set 2016-04-18 12:26:27 -03:00
builtin-report.c perf report: Use callchain_param.enabled instead of tool specific knob 2016-04-18 12:26:25 -03:00
builtin-sched.c perf sched map: Display only given cpus 2016-04-13 10:11:52 -03:00
builtin-script.c perf script: Fix segfault when printing callchains 2016-04-25 12:49:17 -03:00
builtin-stat.c perf stat: Add --metric-only support for -A 2016-03-10 16:50:47 -03:00
builtin-timechart.c perf machine: Rename perf_event__preprocess_sample to machine__resolve 2016-03-23 12:03:08 -03:00
builtin-top.c perf top: Use callchain_param.enabled instead of symbol_conf.use_callchain 2016-04-18 12:30:16 -03:00
builtin-trace.c perf trace: Make --pf honour --min-stack too 2016-04-25 12:49:17 -03:00
builtin-version.c
builtin.h perf tools: Remove needless 'extern' from function prototypes 2016-03-23 15:06:35 -03:00
command-list.txt
CREDITS
design.txt
Makefile perf build tests: Do parallell builds with 'build-test' 2016-02-04 15:57:00 -03:00
Makefile.perf perf tools: Build syscall table .c header from kernel's syscall_64.tbl 2016-04-08 09:58:14 -03:00
MANIFEST perf bench: Fix detached tarball building due to missing 'perf bench memcpy' headers 2016-03-24 12:28:57 -03:00
perf-archive.sh
perf-completion.sh
perf-read-vdso.c
perf-sys.h
perf-with-kcore.sh
perf.c perf config: Remove duplicated set_buildid_dir calls 2016-03-30 11:14:08 -03:00
perf.h perf tools: Ditch record_opts.callgraph_set 2016-04-18 12:26:27 -03:00