perf record: Document --group option
Namhyung Kim
maintainerPATCH 1/1 perf record: Document --group option
The 'perf record --group' option lacks documentation and confuses users. As -e/--event option already supports group spec, it should not be used anymore.
Also add a short description of event group itself.
Reported-by Stephane Eranian <[email protected]>
Signed-off-by Namhyung Kim <[email protected]>
--- tools/perf/Documentation/perf-record.txt | 9 +++++++++ 1 file changed, 9 insertions(+)
tools/perf/Documentation/perf-record.txt +9 -0
@@ -55,6 +55,11 @@ OPTIONS If you want to profile write accesses in [0x1000~1008), just set 'mem:0x1000/8:w'. + - a group of events surrounded by a pair of brace ("{event1,event2,...}"). + Each event is separated by commas and the group should be quoted to + prevent the shell interpretation. You also need to use --group on + "perf report" to view group events together. + --filter=<filter>:: Event filter.
@@ -107,6 +112,10 @@ OPTIONS specification with appended unit character - B/K/M/G. The size is rounded up to have nearest pages power of two value. +--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.
Signature · 1 line
2.2.2
tip-bot for Namhyung Kim
merge botperf record: Document --group option
Commit-ID: 9a75606ca06d94aab1ed0dbe96935e3f89dfb81c Gitweb: http://git.kernel.org/tip/9a75606ca06d94aab1ed0dbe96935e3f89dfb81c Author: Namhyung Kim <[email protected]> AuthorDate: Mon, 2 Mar 2015 12:13:33 +0900 Committer: Arnaldo Carvalho de Melo <[email protected]> CommitDate: Mon, 2 Mar 2015 12:04:45 -0300
perf record: Document --group option
The 'perf record --group' option lacks documentation and confuses users. As -e/--event option already supports group spec, it should not be used anymore.
Also add a short description of event group itself.
Reported-by Stephane Eranian <[email protected]>
Signed-off-by Namhyung Kim <[email protected]>
Cc Jiri Olsa <[email protected]>
Cc Peter Zijlstra <[email protected]>
Cc Stephane Eranian <[email protected]>
Signed-off-by Arnaldo Carvalho de Melo <[email protected]>
--- tools/perf/Documentation/perf-record.txt | 9 +++++++++ 1 file changed, 9 insertions(+)
tools/perf/Documentation/perf-record.txt +9 -0
@@ -55,6 +55,11 @@ OPTIONS If you want to profile write accesses in [0x1000~1008), just set 'mem:0x1000/8:w'. + - a group of events surrounded by a pair of brace ("{event1,event2,...}"). + Each event is separated by commas and the group should be quoted to + prevent the shell interpretation. You also need to use --group on + "perf report" to view group events together. + --filter=<filter>:: Event filter.
@@ -104,6 +109,10 @@ OPTIONS specification with appended unit character - B/K/M/G. The size is rounded up to have nearest pages power of two value. +--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.