linux-kernel - Re: [PATCH v1 0/3] perf: add indirect jump filtering support

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Message-ID: <20150514230400.GB32105@tassilo.jf.intel.com>
Date:	Thu, 14 May 2015 16:04:00 -0700
From:	Andi Kleen <ak@...ux.intel.com>
To:	Stephane Eranian <eranian@...gle.com>
Cc:	linux-kernel@...r.kernel.org, acme@...hat.com,
	peterz@...radead.org, mingo@...e.hu, jolsa@...hat.com,
	namhyung@...nel.org, kan.liang@...el.com, dsahern@...il.com
Subject: Re: [PATCH v1 0/3] perf: add indirect jump filtering support

On Thu, May 14, 2015 at 11:09:57PM +0200, Stephane Eranian wrote:
> This short patch series adds a new filter to the branch stack
> sampling feature. The new filter enables sampling only indirect
> jumps. For each the source and target are captured.
> 
> The new branch_sample_type flag is: PERF_SAMPLE_BRANCH_IND_JUMP 
> 
> The series provides full support in the perf record tool:
> 
>   $ perf record -j ind_jmp ...
> 
> On Intel x86 processors, the filter is implemented using the
> LBR hw filter.
> 
> This filter is useful to study targets of indirect jumps.

Patches look all good to me. 
Reviewed-by: Andi Kleen <ak@...ux.intel.com>
-Andi
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