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| author |   Namhyung Kim <namhyung@kernel.org> | 2022-09-23 10:31:41 -0700 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2022-10-04 08:55:22 -0300 |
| commit | 762461f1a53b268e44fbd941d3734f4553a6e925 (patch) | |
| tree | 28abf62c27314a749020fc95cb9fbe909a20f479 /tools/perf/Documentation/perf-report.txt | |
| parent | perf inject: Clarify build-id options a little bit (diff) | |
| download | linux-dev-762461f1a53b268e44fbd941d3734f4553a6e925.tar.xz linux-dev-762461f1a53b268e44fbd941d3734f4553a6e925.zip | |
perf tools: Add 'addr' sort key
Sometimes users want to see actual (virtual) address of sampled instructions.
Add a new 'addr' sort key to display the raw addresses.
$ perf record -o- true | perf report -i- -s addr
# To display the perf.data header info, please use --header/--header-only options.
#
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.000 MB - ]
#
# Total Lost Samples: 0
#
# Samples: 12 of event 'cycles:u'
# Event count (approx.): 252512
#
# Overhead Address
# ........ ..................
#
42.96% 0x7f96f08443d7
29.55% 0x7f96f0859b50
14.76% 0x7f96f0852e02
8.30% 0x7f96f0855028
4.43% 0xffffffff8de01087
Note that it just compares and displays the sample ip. Each process can
have a different memory layout and the ip will be different even if they run
the same binary. So this sort key is mostly meaningful for per-process
profile data.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: https://lore.kernel.org/r/20220923173142.805896-4-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Documentation/perf-report.txt')
| -rw-r--r-- | tools/perf/Documentation/perf-report.txt | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt index 24efc0583c93..4533db2ee56b 100644 --- a/tools/perf/Documentation/perf-report.txt +++ b/tools/perf/Documentation/perf-report.txt @@ -73,7 +73,7 @@ OPTIONS Sort histogram entries by given key(s) - multiple keys can be specified in CSV format. Following sort keys are available: pid, comm, dso, symbol, parent, cpu, socket, srcline, weight, - local_weight, cgroup_id. + local_weight, cgroup_id, addr. Each key has following meaning: @@ -114,6 +114,7 @@ OPTIONS - local_ins_lat: Local instruction latency version - p_stage_cyc: On powerpc, this presents the number of cycles spent in a pipeline stage. And currently supported only on powerpc. + - addr: (Full) virtual address of the sampled instruction By default, comm, dso and symbol keys are used. (i.e. --sort comm,dso,symbol) |