diff options
| author | Ian Rogers <irogers@google.com> | 2022-12-13 15:26:51 -0800 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2022-12-14 15:28:18 -0300 |
| commit | 5f8f95673f68914419e8657b3263736264b40e16 (patch) | |
| tree | 472051218ffc1e846582778950f9917677dda5db /tools/perf/Documentation | |
| parent | caec54705adb73b0015bce4dc781e0d19a91ff18 (diff) | |
| download | linux-5f8f95673f68914419e8657b3263736264b40e16.tar.bz2 | |
perf evlist: Remove group option.
The group option predates grouping events using curly braces added in
commit 89efb029502d7f2d ("perf tools: Add support to parse event group
syntax").
The --group option was retained for legacy support (in August
2012) but keeping it adds complexity.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Eelco Chaudron <echaudro@redhat.com>
Cc: German Gomez <german.gomez@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Kim Phillips <kim.phillips@amd.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: Sandipan Das <sandipan.das@amd.com>
Cc: Sean Christopherson <seanjc@google.com>
Cc: Shaomin Deng <dengshaomin@cdjrlc.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Timothy Hayes <timothy.hayes@arm.com>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Cc: bpf@vger.kernel.org
Link: https://lore.kernel.org/r/20221213232651.1269909-6-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Documentation')
| -rw-r--r-- | tools/perf/Documentation/perf-record.txt | 4 | ||||
| -rw-r--r-- | tools/perf/Documentation/perf-top.txt | 7 |
2 files changed, 2 insertions, 9 deletions
diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt index 5f9fa07b3dde..ff815c2f67e8 100644 --- a/tools/perf/Documentation/perf-record.txt +++ b/tools/perf/Documentation/perf-record.txt @@ -238,10 +238,6 @@ OPTIONS Also, by adding a comma, the number of mmap pages for AUX area tracing can be specified. ---group:: - Put all events in a single event group. This precedes the --event - option and remains only for backward compatibility. See --event. - -g:: Enables call-graph (stack chain/backtrace) recording for both kernel space and user space. diff --git a/tools/perf/Documentation/perf-top.txt b/tools/perf/Documentation/perf-top.txt index c1fdba26bf53..e534d709cc5a 100644 --- a/tools/perf/Documentation/perf-top.txt +++ b/tools/perf/Documentation/perf-top.txt @@ -51,9 +51,6 @@ Default is to monitor all CPUS. --count-filter=<count>:: Only display functions with more events than this. ---group:: - Put the counters into a counter group. - --group-sort-idx:: Sort the output by the event at the index n in group. If n is invalid, sort by the first event. It can support multiple groups with different @@ -313,10 +310,10 @@ use '-e e1 -e e2 -G foo,foo' or just use '-e e1 -e e2 -G foo'. perf top -e cycles,probe:icmp_rcv --switch-on=probe:icmp_rcv - Alternatively one can ask for --group and then two overhead columns + Alternatively one can ask for a group and then two overhead columns will appear, the first for cycles and the second for the switch-on event. - perf top --group -e cycles,probe:icmp_rcv --switch-on=probe:icmp_rcv + perf top -e '{cycles,probe:icmp_rcv}' --switch-on=probe:icmp_rcv This may be interesting to measure a workload only after some initialization phase is over, i.e. insert a perf probe at that point and use the above |