linux-kernel - Re: [PATCH 04/22] perf tools: Add --list report option

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Message-ID: <20140205091428.GC1201@krava.brq.redhat.com>
Date:	Wed, 5 Feb 2014 10:14:28 +0100
From:	Jiri Olsa <jolsa@...hat.com>
To:	Namhyung Kim <namhyung@...nel.org>
Cc:	linux-kernel@...r.kernel.org,
	Corey Ashford <cjashfor@...ux.vnet.ibm.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Ingo Molnar <mingo@...e.hu>, Paul Mackerras <paulus@...ba.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	David Ahern <dsahern@...il.com>
Subject: Re: [PATCH 04/22] perf tools: Add --list report option

On Wed, Feb 05, 2014 at 10:50:36AM +0900, Namhyung Kim wrote:
> On Sun,  2 Feb 2014 22:38:52 +0100, Jiri Olsa wrote:
> > Adding --list report option to display entries sequentialy:
> >
> >   $ perf report --list --stdio
> >   ...
> >        0.00%       13151.543527 +000000.000000       ls  [kernel.kallsyms]  [k] native_write_msr_safe
> >        0.00%       13151.543530 +000000.000003       ls  [kernel.kallsyms]  [k] native_write_msr_safe
> >        0.00%       13151.543532 +000000.000005       ls  [kernel.kallsyms]  [k] native_write_msr_safe
> >        0.00%       13151.543534 +000000.000007       ls  [kernel.kallsyms]  [k] native_write_msr_safe
> >        0.05%       13151.543536 +000000.000009       ls  [kernel.kallsyms]  [k] native_write_msr_safe
> >        0.92%       13151.543538 +000000.000011       ls  [kernel.kallsyms]  [k] perf_event_comm
> >       14.52%       13151.543560 +000000.000033       ls  [kernel.kallsyms]  [k] uprobe_mmap
> >       30.10%       13151.543878 +000000.000351       ls  ld-2.17.so         [.] _dl_setup_hash
> >       29.30%       13151.544531 +000000.001004       ls  ls                 [.] gobble_file.constprop.49
> >       25.09%       13151.545613 +000000.002086       ls  [kernel.kallsyms]  [k] _cond_resched
> 
> Hmm.. it seems what this --list option does is very similar to
> what "perf script -f time,comm,dso,sym,ip" tries to do, no?

correct.. it's just byproduct which I need for lock browser
I'm working on.. but this basic output seemed usefull and
actually missing from report portfolio ;-)

but as I said, it's a byproduct and I can leave it for
the lock change patchset

thanks,
jirka
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