From: Jiri Olsa <jolsa@redhat.com>
To: Andi Kleen <andi@firstfloor.org>
Cc: acme@kernel.org, linux-kernel@vger.kernel.org,
namhyung@kernel.org, eranian@google.com
Subject: Re: Cycles annotation support for perf tools
Date: Sun, 24 May 2015 20:55:00 +0200 [thread overview]
Message-ID: <20150524185500.GA5792@krava.redhat.com> (raw)
In-Reply-To: <1431265926-4766-1-git-send-email-andi@firstfloor.org>
On Sun, May 10, 2015 at 06:51:56AM -0700, Andi Kleen wrote:
> The upcoming Skylake CPU has a new timed branch stack feature,
> that reports cycle counts for individual branches in the
> last branch record.
>
> This allows to get fine grained cost information for code, and also allows
> to compute fine grained IPC.
>
> This patchkit adds support for this in the perf tools:
> - Basic support for the cycles field like other branch fields
> - Show cycles in the standard branch sort view (no IPC here,
> as IPC needs the instruction counts from annotation)
> - Annotate cycles and IPC in the assembler annotate view
> - Add branch support to top, so we can do live annotation.
> - Misc support, like dumping it in perf report -D
hi,
do you have a branch with this change?
thanks,
jirka
next prev parent reply other threads:[~2015-05-24 18:55 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-10 13:51 Cycles annotation support for perf tools Andi Kleen
2015-05-10 13:51 ` [PATCH 01/10] perf, tools: Add tools support for cycles, weight branch_info field Andi Kleen
2015-05-10 13:51 ` [PATCH 02/10] perf, tools, report: Add flag for non ANY branch mode Andi Kleen
2015-05-10 13:51 ` [PATCH 03/10] perf, tools, report: Add infrastructure for a cycles histogram Andi Kleen
2015-05-10 13:52 ` [PATCH 04/10] perf, tools, report: Add processing for cycle histograms Andi Kleen
2015-05-26 10:09 ` Jiri Olsa
2015-05-26 17:37 ` Andi Kleen
2015-06-01 13:02 ` Jiri Olsa
2015-06-01 13:07 ` Andi Kleen
2015-05-10 13:52 ` [PATCH 05/10] perf, tools: Compute IPC and basic block cycles for annotate Andi Kleen
2015-05-10 13:52 ` [PATCH 06/10] perf, tools, annotate: Finally display IPC and cycle accounting Andi Kleen
2015-05-10 13:52 ` [PATCH 07/10] perf, tools, report: Move branch option parsing to own file Andi Kleen
2015-05-26 10:09 ` Jiri Olsa
2015-05-10 13:52 ` [PATCH 08/10] perf, tools, top: Add branch annotation code to top Andi Kleen
2015-05-10 13:52 ` [PATCH 09/10] perf, tools, report: Display cycles in branch sort mode Andi Kleen
2015-05-10 13:52 ` [PATCH 10/10] test patch: Add fake branch cycles to input data in report/top Andi Kleen
2015-05-18 19:06 ` Cycles annotation support for perf tools Andi Kleen
2015-05-19 9:55 ` Jiri Olsa
2015-05-24 18:55 ` Jiri Olsa [this message]
2015-05-24 19:19 ` Andi Kleen
2015-05-26 10:08 ` Jiri Olsa
2015-05-26 16:56 ` Andi Kleen
2015-05-26 21:40 ` Andi Kleen
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