linux-kernel - Re: [PATCH v6 11/18] perf tools: add mem access sampling core support

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Date:	Fri, 18 Jan 2013 15:25:07 -0800
From:	Andi Kleen <ak@...ux.intel.com>
To:	Stephane Eranian <eranian@...gle.com>
Cc:	linux-kernel@...r.kernel.org, peterz@...radead.org, mingo@...e.hu,
	acme@...hat.com, jolsa@...hat.com, namhyung.kim@....com
Subject: Re: [PATCH v6 11/18] perf tools: add mem access sampling core support

On Tue, Jan 15, 2013 at 04:39:39PM +0100, Stephane Eranian wrote:
> This patch adds the sorting and histogram support
> functions to enable profiling of memory accesses.
> 
> The following sorting orders are added:
>  - symbol_daddr: data address symbol (or raw address)
>  - dso_daddr: data address shared object
>  - weight: access cost
>  - locked: access uses locked transaction
>  - tlb : TLB access
>  - mem : memory level of the access (L1, L2, L3, RAM, ...)
>  - snoop: access snoop mode

Do they actually sort? I found that the sort keys do not actually
sort in most cases. This is mostly an issue with numbers like
"weight" and of course not added by your patch.


-Andi

-- 
ak@...ux.intel.com -- Speaking for myself only
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