linux-kernel - Re: [PATCH 01/11] perf, tools: Add tools support for cycles, weight branch

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Date:	Mon, 1 Jun 2015 16:16:07 +0200
From:	Jiri Olsa <jolsa@...hat.com>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	acme@...nel.org, namhyung@...nel.org, eranian@...gle.com,
	linux-kernel@...r.kernel.org, Andi Kleen <ak@...ux.intel.com>
Subject: Re: [PATCH 01/11] perf, tools: Add tools support for cycles, weight
 branch_info field

On Wed, May 27, 2015 at 10:51:44AM -0700, Andi Kleen wrote:
> From: Andi Kleen <ak@...ux.intel.com>
> 
> cycles is a new branch_info field available on some CPUs
> that indicates the time deltas between branches in the LBR.
> 
> Add a sort key and output code for the cycles
> to allow to display the basic block cycles individually in perf report.
> 
> We also pass in the cycles for weight when LBRs are processed,
> which allows to get global and local weight, to get an estimate
> of the total cost.
> 
> And also print the cycles information for perf report -D.
> I also added printing for the previously missing LBR flags
> (mispredict etc.)
> 
> Signed-off-by: Andi Kleen <ak@...ux.intel.com>

Acked-by: Jiri Olsa <jolsa@...nel.org>

thanks,
jirka
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