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author | Ingo Molnar <mingo@kernel.org> | 2014-07-18 06:16:06 +0200 |
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committer | Ingo Molnar <mingo@kernel.org> | 2014-07-18 06:16:06 +0200 |
commit | ec6dbcb7ade2a616675cbe3185cf299ee1615c9f (patch) | |
tree | 4953f7eca477e011aa9e16cdb236220ed9cec4be /tools/perf/Documentation/perf-kvm.txt | |
parent | ff2ebe46e15bd49d52b9c2f3fc77f3a9d94eac7b (diff) | |
parent | 0b437860818dc717f6a9e8a5089223a8414f5fff (diff) | |
download | op-kernel-dev-ec6dbcb7ade2a616675cbe3185cf299ee1615c9f.zip op-kernel-dev-ec6dbcb7ade2a616675cbe3185cf299ee1615c9f.tar.gz |
Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core
Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:
User visible changes:
o Support S/390 in 'perf kvm stat' (Alexander Yarygin)
Developer Stuff:
o Various fixes and prep work related to supporting Intel PT (Adrian Hunter)
o Introduce multiple debug variables control (Jiri Olsa)
o Add callchain and additional sample information for python scripts (Joseph Schuchart)
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'tools/perf/Documentation/perf-kvm.txt')
-rw-r--r-- | tools/perf/Documentation/perf-kvm.txt | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/tools/perf/Documentation/perf-kvm.txt b/tools/perf/Documentation/perf-kvm.txt index 52276a6..6e689dc 100644 --- a/tools/perf/Documentation/perf-kvm.txt +++ b/tools/perf/Documentation/perf-kvm.txt @@ -51,9 +51,9 @@ There are a couple of variants of perf kvm: 'perf kvm stat <command>' to run a command and gather performance counter statistics. Especially, perf 'kvm stat record/report' generates a statistical analysis - of KVM events. Currently, vmexit, mmio and ioport events are supported. - 'perf kvm stat record <command>' records kvm events and the events between - start and end <command>. + of KVM events. Currently, vmexit, mmio (x86 only) and ioport (x86 only) + events are supported. 'perf kvm stat record <command>' records kvm events + and the events between start and end <command>. And this command produces a file which contains tracing results of kvm events. @@ -103,8 +103,8 @@ STAT REPORT OPTIONS analyze events which occures on this vcpu. (default: all vcpus) --event=<value>:: - event to be analyzed. Possible values: vmexit, mmio, ioport. - (default: vmexit) + event to be analyzed. Possible values: vmexit, mmio (x86 only), + ioport (x86 only). (default: vmexit) -k:: --key=<value>:: Sorting key. Possible values: sample (default, sort by samples @@ -138,7 +138,8 @@ STAT LIVE OPTIONS --event=<value>:: - event to be analyzed. Possible values: vmexit, mmio, ioport. + event to be analyzed. Possible values: vmexit, + mmio (x86 only), ioport (x86 only). (default: vmexit) -k:: @@ -147,7 +148,8 @@ STAT LIVE OPTIONS number), time (sort by average time). --duration=<value>:: - Show events other than HLT that take longer than duration usecs. + Show events other than HLT (x86 only) or Wait state (s390 only) + that take longer than duration usecs. SEE ALSO -------- |