linux-kernel - Re: [PATCH 01/12] perf_events: add generic taken branch sampling support

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Message-ID: <1317920486.29658.15.camel@twins>
Date:	Thu, 06 Oct 2011 19:01:26 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Stephane Eranian <eranian@...gle.com>
Cc:	linux-kernel@...r.kernel.org, mingo@...e.hu, acme@...hat.com,
	ming.m.lin@...el.com, andi@...stfloor.org, robert.richter@....com,
	ravitillo@....gov
Subject: Re: [PATCH 01/12] perf_events: add generic taken branch sampling
 support

On Thu, 2011-10-06 at 16:49 +0200, Stephane Eranian wrote:
> +enum perf_branch_sample_type {
> +       PERF_SAMPLE_BRANCH_USER         = 1U << 0, /* user level branches */
> +       PERF_SAMPLE_BRANCH_KERNEL       = 1U << 1, /* kernel level branches */


I just merged a patch-set that adds guest/host muck as well, would it
make sense to extend this stuff to support that as well?

> +       PERF_SAMPLE_BRANCH_ANY          = 1U << 2, /* any branch types */
> +       PERF_SAMPLE_BRANCH_ANY_CALL     = 1U << 3, /* any call branch */
> +       PERF_SAMPLE_BRANCH_ANY_RETURN   = 1U << 4, /* any return branch */
> +       PERF_SAMPLE_BRANCH_IND_CALL     = 1U << 5, /* indirect calls */
> +
> +       PERF_SAMPLE_BRANCH_MAX          = 1U << 6,/* non-ABI */
> +} 
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