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| author | Dongsheng Yang <yangds.fnst@cn.fujitsu.com> | 2013-12-04 17:56:41 -0500 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2013-12-04 15:06:08 -0300 |
| commit | 8df0b4ad58081773647dd2e0fddd45e8c0022c67 (patch) | |
| tree | 255df2daa4fcd3b636315757e18968ef4553243b | |
| parent | 316bd98a9aa47693215e0d3a5bcc83f51691ba93 (diff) | |
| download | op-kernel-dev-8df0b4ad58081773647dd2e0fddd45e8c0022c67.zip op-kernel-dev-8df0b4ad58081773647dd2e0fddd45e8c0022c67.tar.gz | |
perf kvm: Update the 'record' man page entry for new --guest/--host behavior
As we have changed the default behavior of 'perf kvm' to --guest
enabled, the parts of the man page that covers the 'record' subcommand
are outdated.
This patch updates it to show the correct output with
--host/--guest/neither/both of them.
Signed-off-by: Dongsheng Yang <yangds.fnst@cn.fujitsu.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/3a3a9c1e05acb5a274d1d8369db5a4c6467d6276.1386197481.git.yangds.fnst@cn.fujitsu.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| -rw-r--r-- | tools/perf/Documentation/perf-kvm.txt | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/tools/perf/Documentation/perf-kvm.txt b/tools/perf/Documentation/perf-kvm.txt index 7953227..96a9a1d 100644 --- a/tools/perf/Documentation/perf-kvm.txt +++ b/tools/perf/Documentation/perf-kvm.txt @@ -24,10 +24,17 @@ There are a couple of variants of perf kvm: of an arbitrary workload. 'perf kvm record <command>' to record the performance counter profile - of an arbitrary workload and save it into a perf data file. If both - --host and --guest are input, the perf data file name is perf.data.kvm. - If there is no --host but --guest, the file name is perf.data.guest. - If there is no --guest but --host, the file name is perf.data.host. + of an arbitrary workload and save it into a perf data file. We set the + default behavior of perf kvm as --guest, so if neither --host nor --guest + is input, the perf data file name is perf.data.guest. If --host is input, + the perf data file name is perf.data.kvm. If you want to record data into + perf.data.host, please input --host --no-guest. The behaviors are shown as + following: + Default('') -> perf.data.guest + --host -> perf.data.kvm + --guest -> perf.data.guest + --host --guest -> perf.data.kvm + --host --no-guest -> perf.data.host 'perf kvm report' to display the performance counter profile information recorded via perf kvm record. |
