linux-kernel - Re: [PATCH 24/41] perf tools: Add cpu to struct thread

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Message-ID: <20140715142421.GD3301@kernel.org>
Date:	Tue, 15 Jul 2014 11:24:21 -0300
From:	Arnaldo Carvalho de Melo <acme@...nel.org>
To:	Adrian Hunter <adrian.hunter@...el.com>
Cc:	Peter Zijlstra <peterz@...radead.org>,
	linux-kernel@...r.kernel.org, David Ahern <dsahern@...il.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Jiri Olsa <jolsa@...hat.com>,
	Namhyung Kim <namhyung@...il.com>,
	Paul Mackerras <paulus@...ba.org>,
	Stephane Eranian <eranian@...gle.com>
Subject: Re: [PATCH 24/41] perf tools: Add cpu to struct thread

Em Mon, Jul 14, 2014 at 01:02:48PM +0300, Adrian Hunter escreveu:
> Tools may wish to track on which cpu a thread
> is running.  Add 'cpu' to struct thread for
> that purpose.
> 
> This will be used to determine the cpu when
> decoding a per-thread Instruction Trace.

Humm, is this the last cpu we got some event telling the cpu was running
on? Continuing looking at the patches...

- Arnaldo
 
> Signed-off-by: Adrian Hunter <adrian.hunter@...el.com>
> ---
>  tools/perf/util/thread.c | 1 +
>  tools/perf/util/thread.h | 1 +
>  2 files changed, 2 insertions(+)
> 
> diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c
> index b9a3ee4..2f8c0c1 100644
> --- a/tools/perf/util/thread.c
> +++ b/tools/perf/util/thread.c
> @@ -69,6 +69,7 @@ struct thread *thread__new(pid_t pid, pid_t tid)
>  		thread->pid_ = pid;
>  		thread->tid = tid;
>  		thread->ppid = -1;
> +		thread->cpu = -1;
>  		INIT_LIST_HEAD(&thread->comm_list);
>  
>  		comm_str = malloc(32);
> diff --git a/tools/perf/util/thread.h b/tools/perf/util/thread.h
> index b4269af..e4920ff 100644
> --- a/tools/perf/util/thread.h
> +++ b/tools/perf/util/thread.h
> @@ -17,6 +17,7 @@ struct thread {
>  	pid_t			pid_; /* Not all tools update this */
>  	pid_t			tid;
>  	pid_t			ppid;
> +	int			cpu;
>  	char			shortname[3];
>  	bool			comm_set;
>  	bool			dead; /* if set thread has exited */
> -- 
> 1.8.3.2
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