As we have changed the default behavior of perf kvm to --guest enabled,
the document about perf kvm record is outdated. This patch update it to
show the correct output with --host/--guest/neither/both of them.
Signed-off-by: Dongsheng Yang <yangds.f...@cn.fujitsu.com>
---
tools/perf/Documentation/perf-kvm.txt | 15 +++++++++++----
1 file changed, 11 insertions(+), 4 deletions(-)
diff --git a/tools/perf/Documentation/perf-kvm.txt
b/tools/perf/Documentation/perf-kvm.txt
index 6a06cef..830613a 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.
--
1.8.2.1
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