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| author | Adrian Hunter <adrian.hunter@intel.com> | 2021-10-27 11:03:30 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-10-27 16:20:08 -0300 |
| commit | b6778fe1bbe486e65439a50226b5c7b70dc11d94 (patch) | |
| tree | 1379000c0922df77acafe3e3996f8bae0b7d1c22 /tools/perf/util/auxtrace.h | |
| parent | cf14013b6ccce97901fa91eae4934f3fb4380401 (diff) | |
| download | lwn-b6778fe1bbe486e65439a50226b5c7b70dc11d94.tar.gz lwn-b6778fe1bbe486e65439a50226b5c7b70dc11d94.zip | |
perf auxtrace: Add itrace A option to approximate IPC
Add an option to specify that synthesized IPC can be approximate, rather
than completely accurate.
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: https://lore.kernel.org/r/20211027080334.365596-3-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/auxtrace.h')
| -rw-r--r-- | tools/perf/util/auxtrace.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/tools/perf/util/auxtrace.h b/tools/perf/util/auxtrace.h index 20dc78d86d54..889f976ea1a0 100644 --- a/tools/perf/util/auxtrace.h +++ b/tools/perf/util/auxtrace.h @@ -84,6 +84,7 @@ enum itrace_period_type { * @thread_stack: feed branches to the thread_stack * @last_branch: add branch context to 'instruction' events * @add_last_branch: add branch context to existing event records + * @approx_ipc: approximate IPC * @flc: whether to synthesize first level cache events * @llc: whether to synthesize last level cache events * @tlb: whether to synthesize TLB events @@ -127,6 +128,7 @@ struct itrace_synth_opts { bool thread_stack; bool last_branch; bool add_last_branch; + bool approx_ipc; bool flc; bool llc; bool tlb; @@ -649,6 +651,7 @@ bool auxtrace__evsel_is_auxtrace(struct perf_session *session, " L[len]: synthesize last branch entries on existing event records\n" \ " sNUMBER: skip initial number of events\n" \ " q: quicker (less detailed) decoding\n" \ +" A: approximate IPC\n" \ " Z: prefer to ignore timestamps (so-called \"timeless\" decoding)\n" \ " PERIOD[ns|us|ms|i|t]: specify period to sample stream\n" \ " concatenate multiple options. Default is ibxwpe or cewp\n" |