linux-kernel - Re: [PATCH 4/4] perf kvm: Add stat support on s390

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Date:	Thu, 10 Jul 2014 14:50:07 +0400
From:	Alexander Yarygin <yarygin@...ux.vnet.ibm.com>
To:	Arnaldo Carvalho de Melo <acme@...nel.org>,
	David Ahern <dsahern@...il.com>
Cc:	Jiri Olsa <jolsa@...hat.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Paul Mackerras <paulus@...ba.org>,
	Ingo Molnar <mingo@...nel.org>,
	Alexander Yarygin <yarygin@...ux.vnet.ibm.com>,
	Christian Borntraeger <borntraeger@...ibm.com>,
	Cornelia Huck <cornelia.huck@...ibm.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 4/4] perf kvm: Add stat support on s390

At Thu,  3 Jul 2014 18:29:07 +0400,
Alexander Yarygin wrote:
> 

...

> diff --git a/tools/perf/Documentation/perf-kvm.txt b/tools/perf/Documentation/perf-kvm.txt
> index 52276a6..abf2925 100644
> --- a/tools/perf/Documentation/perf-kvm.txt
> +++ b/tools/perf/Documentation/perf-kvm.txt
> @@ -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
>  --------

fixup (mmio and ioport events are marked as x86 only):

--- 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.

Arnaldo, could you please also merge this? Or should I resend the patch?

Thanks.

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