linux-kernel - Re: [PATCH] perf sched timehist: Add pid and tid options

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Date:   Fri, 8 Sep 2017 10:28:02 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     David Ahern <dsahern@...il.com>
Cc:     namhyung@...nel.org, acme@...hat.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] perf sched timehist: Add pid and tid options

Em Thu, Sep 07, 2017 at 09:07:24AM -0600, David Ahern escreveu:
> Hi Arnaldo:
> 
> are you ok with this change?

Yes, it is already merged in my perf/core branch.

- Arnaldo
 
> On 9/1/17 11:49 AM, David Ahern wrote:
> > Add options to only show event for specific pid(s) and tid(s).
> > 
> > Signed-off-by: David Ahern <dsahern@...il.com>
> > ---
> >  tools/perf/Documentation/perf-sched.txt | 8 ++++++++
> >  tools/perf/builtin-sched.c              | 4 ++++
> >  2 files changed, 12 insertions(+)
> > 
> > diff --git a/tools/perf/Documentation/perf-sched.txt b/tools/perf/Documentation/perf-sched.txt
> > index a092a2499e8f..55b67338548e 100644
> > --- a/tools/perf/Documentation/perf-sched.txt
> > +++ b/tools/perf/Documentation/perf-sched.txt
> > @@ -106,6 +106,14 @@ OPTIONS for 'perf sched timehist'
> >  --max-stack::
> >  	Maximum number of functions to display in backtrace, default 5.
> >  
> > +-p=::
> > +--pid=::
> > +	Only show events for given process ID (comma separated list).
> > +
> > +-t=::
> > +--tid=::
> > +	Only show events for given thread ID (comma separated list).
> > +
> >  -s::
> >  --summary::
> >      Show only a summary of scheduling by thread with min, max, and average
> > diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
> > index 322b4def8411..b7e8812ee80c 100644
> > --- a/tools/perf/builtin-sched.c
> > +++ b/tools/perf/builtin-sched.c
> > @@ -3363,6 +3363,10 @@ int cmd_sched(int argc, const char **argv)
> >  	OPT_STRING(0, "time", &sched.time_str, "str",
> >  		   "Time span for analysis (start,stop)"),
> >  	OPT_BOOLEAN(0, "state", &sched.show_state, "Show task state when sched-out"),
> > +	OPT_STRING('p', "pid", &symbol_conf.pid_list_str, "pid[,pid...]",
> > +		   "analyze events only for given process id(s)"),
> > +	OPT_STRING('t', "tid", &symbol_conf.tid_list_str, "tid[,tid...]",
> > +		   "analyze events only for given thread id(s)"),
> >  	OPT_PARENT(sched_options)
> >  	};
> >  
> >