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Commit 8df0b4ad authored by Dongsheng Yang's avatar Dongsheng Yang Committed by Arnaldo Carvalho de Melo
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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are outdated.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: default avatarDongsheng 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: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 316bd98a

tools/perf/Documentation/perf-kvm.txt

+11 −4
Original line number Diff line number Diff line
@@ -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.