diff options
| 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 13:06:08 -0500 |
| commit | 8df0b4ad58081773647dd2e0fddd45e8c0022c67 (patch) | |
| tree | 255df2daa4fcd3b636315757e18968ef4553243b /tools | |
| parent | 316bd98a9aa47693215e0d3a5bcc83f51691ba93 (diff) | |
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are outdated.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>
Diffstat (limited to 'tools')
| -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 795322733c56..96a9a1dea727 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: | |||
| 24 | of an arbitrary workload. | 24 | of an arbitrary workload. |
| 25 | 25 | ||
| 26 | 'perf kvm record <command>' to record the performance counter profile | 26 | 'perf kvm record <command>' to record the performance counter profile |
| 27 | of an arbitrary workload and save it into a perf data file. If both | 27 | of an arbitrary workload and save it into a perf data file. We set the |
| 28 | --host and --guest are input, the perf data file name is perf.data.kvm. | 28 | default behavior of perf kvm as --guest, so if neither --host nor --guest |
| 29 | If there is no --host but --guest, the file name is perf.data.guest. | 29 | is input, the perf data file name is perf.data.guest. If --host is input, |
| 30 | If there is no --guest but --host, the file name is perf.data.host. | 30 | the perf data file name is perf.data.kvm. If you want to record data into |
| 31 | perf.data.host, please input --host --no-guest. The behaviors are shown as | ||
| 32 | following: | ||
| 33 | Default('') -> perf.data.guest | ||
| 34 | --host -> perf.data.kvm | ||
| 35 | --guest -> perf.data.guest | ||
| 36 | --host --guest -> perf.data.kvm | ||
| 37 | --host --no-guest -> perf.data.host | ||
| 31 | 38 | ||
| 32 | 'perf kvm report' to display the performance counter profile information | 39 | 'perf kvm report' to display the performance counter profile information |
| 33 | recorded via perf kvm record. | 40 | recorded via perf kvm record. |