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From: Peter Zijlstra <peterz@infradead.org>
To: Stephane Eranian <eranian@google.com>
Cc: Don Zickus <dzickus@redhat.com>,
	Arnaldo Carvalho de Melo <acme@ghostprotocols.net>,
	LKML <linux-kernel@vger.kernel.org>, Jiri Olsa <jolsa@redhat.com>,
	Joe Mario <jmario@redhat.com>,
	Richard Fowles <fowles@inreach.com>
Subject: Re: [PATCH 00/21] perf, c2c: Add new tool to analyze cacheline contention on NUMA systems
Date: Tue, 11 Feb 2014 12:31:49 +0100	[thread overview]
Message-ID: <20140211113149.GW9987@twins.programming.kicks-ass.net> (raw)
In-Reply-To: <CABPqkBRw4W9=ORuhAJpx4L0pCt8iBKshhR5Qv5cLvcD5vR2eRA@mail.gmail.com>

On Tue, Feb 11, 2014 at 12:28:47PM +0100, Stephane Eranian wrote:
> On Tue, Feb 11, 2014 at 12:14 PM, Peter Zijlstra <peterz@infradead.org> wrote:
> > On Tue, Feb 11, 2014 at 12:08:56PM +0100, Stephane Eranian wrote:
> >> Assuming you can decode and get the info about the base registers used,
> >> you'd have to do this for each arch with load/store sampling capabilities.
> >> this is painful compared to getting the portable info from dwarf directly.
> >
> > But its useful now, as compared to whenever GCC gets around to
> > implementing more dwarves and that GCC getting used widely enough to
> > actually rely on it.
> >
> > All you need for the decode is a disassembler, and every arch should
> > already have multiple of those. Should be easy to reuse one, right?
> 
> I know, and you want to pull this into the perf tool?

Sure why not, its already got the world and then some :/

It would be just another dynamic lib.

  reply	other threads:[~2014-02-11 11:32 UTC|newest]

Thread overview: 72+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-02-10 17:28 [PATCH 00/21] perf, c2c: Add new tool to analyze cacheline contention on NUMA systems Don Zickus
2014-02-10 17:28 ` [PATCH 03/21] Revert "perf: Disable PERF_RECORD_MMAP2 support" Don Zickus
2014-02-10 17:28 ` [PATCH 04/21] perf, machine: Use map as success in ip__resolve_ams Don Zickus
2014-02-10 17:29 ` [PATCH 05/21] perf, session: Change header.misc dump from decimal to hex Don Zickus
2014-02-18 12:56   ` Jiri Olsa
2014-02-19  2:40     ` Don Zickus
2014-02-10 17:29 ` [PATCH 06/21] perf, stat: FIXME Stddev calculation is incorrect Don Zickus
2014-02-10 17:29 ` [PATCH 07/21] perf, callchain: Add generic callchain print handler for stdio Don Zickus
2014-02-10 17:29 ` [PATCH 08/21] perf, c2c: Rework setup code to prepare for features Don Zickus
2014-02-18 13:02   ` Jiri Olsa
2014-02-19  2:45     ` Don Zickus
2014-02-10 17:29 ` [PATCH 09/21] perf, c2c: Add rbtree sorted on mmap2 data Don Zickus
2014-02-18 13:04   ` Jiri Olsa
2014-02-19  2:48     ` Don Zickus
2014-02-21  2:45     ` Don Zickus
2014-02-21 16:59       ` Jiri Olsa
2014-02-26  3:12         ` Don Zickus
2014-02-10 17:29 ` [PATCH 10/21] perf, c2c: Add stats to track data source bits and cpu to node maps Don Zickus
2014-02-18 13:05   ` Jiri Olsa
2014-02-19  2:51     ` Don Zickus
2014-02-10 17:29 ` [PATCH 11/21] perf, c2c: Sort based on hottest cache line Don Zickus
2014-02-10 17:29 ` [PATCH 12/21] perf, c2c: Display cacheline HITM analysis to stdout Don Zickus
2014-02-10 17:29 ` [PATCH 13/21] perf, c2c: Add callchain support Don Zickus
2014-02-18 13:07   ` Jiri Olsa
2014-02-19  2:54     ` Don Zickus
2014-02-10 17:29 ` [PATCH 14/21] perf, c2c: Output summary stats Don Zickus
2014-02-10 17:29 ` [PATCH 15/21] perf, c2c: Dump rbtree for debugging Don Zickus
2014-02-10 17:29 ` [PATCH 16/21] perf, c2c: Fixup tid because of perf map is broken Don Zickus
2014-02-10 17:29 ` [PATCH 17/21] perf, c2c: Add symbol count table Don Zickus
2014-02-18 13:09   ` Jiri Olsa
2014-02-19  2:56     ` Don Zickus
2014-02-10 17:29 ` [PATCH 18/21] perf, c2c: Add shared cachline summary table Don Zickus
2014-02-10 17:29 ` [PATCH 19/21] perf, c2c: Add framework to analyze latency and display summary stats Don Zickus
2014-02-10 17:29 ` [PATCH 20/21] perf, c2c: Add selected extreme latencies to output cacheline stats table Don Zickus
2014-02-10 17:29 ` [PATCH 21/21] perf, c2c: Add summary latency table for various parts of caches Don Zickus
2014-02-10 18:59 ` [PATCH 00/21] perf, c2c: Add new tool to analyze cacheline contention on NUMA systems Davidlohr Bueso
2014-02-10 19:17   ` Don Zickus
2014-02-10 19:18 ` [PATCH 01/21] perf c2c: Shared data analyser Don Zickus
2014-02-10 22:10   ` Davidlohr Bueso
2014-02-11 11:24     ` Jiri Olsa
2014-02-11 11:31     ` Arnaldo Carvalho de Melo
2014-02-11 13:54       ` Don Zickus
2014-02-11 14:36       ` Don Zickus
2014-02-11 15:41         ` Arnaldo Carvalho de Melo
2014-02-10 19:18 ` [PATCH 02/21] perf c2c: Dump raw records, decode data_src bits Don Zickus
2014-02-10 21:18 ` [PATCH 00/21] perf, c2c: Add new tool to analyze cacheline contention on NUMA systems Peter Zijlstra
2014-02-10 22:11   ` Don Zickus
2014-02-10 21:29 ` Peter Zijlstra
2014-02-10 22:20   ` Don Zickus
2014-02-10 22:21   ` Stephane Eranian
2014-02-11  7:14     ` Peter Zijlstra
2014-02-11 10:35       ` Stephane Eranian
2014-02-11 10:52         ` Peter Zijlstra
2014-02-11 10:58           ` Stephane Eranian
2014-02-11 11:02             ` Peter Zijlstra
2014-02-11 11:04               ` Stephane Eranian
2014-02-11 11:08                 ` Peter Zijlstra
2014-02-11 11:08                 ` Stephane Eranian
2014-02-11 11:14                   ` Peter Zijlstra
2014-02-11 11:28                     ` Stephane Eranian
2014-02-11 11:31                       ` Peter Zijlstra [this message]
2014-02-11 11:51                         ` Peter Zijlstra
2014-02-11 11:50                     ` Arnaldo Carvalho de Melo
2014-02-11 12:09                       ` Peter Zijlstra
2014-02-13 13:02                       ` Jiri Olsa
2014-02-13 13:10                         ` Stephane Eranian
     [not found] ` <1392053356-23024-2-git-send-email-dzickus@redhat.com>
2014-02-18 12:52   ` [PATCH 01/21] perf c2c: Shared data analyser Jiri Olsa
2014-02-18 12:56     ` Arnaldo Carvalho de Melo
2014-02-19  2:42       ` Don Zickus
     [not found] ` <1392053356-23024-3-git-send-email-dzickus@redhat.com>
2014-02-18 12:53   ` [PATCH 02/21] perf c2c: Dump raw records, decode data_src bits Jiri Olsa
2014-02-18 13:49     ` Arnaldo Carvalho de Melo
2014-02-19  3:04     ` Don Zickus

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