Re: [PATCH] perf tools: Improve thread comm resolution in perf sched

[Frederic Weisbecker <fweisbec@gmail.com>]

On Thu, Oct 08, 2009 at 06:33:02PM +0200, Peter Zijlstra wrote:
> On Thu, 2009-10-08 at 16:37 +0200, Frederic Weisbecker wrote:
> > When we get sched traces that involve a task that was already
> > created before opening the event, we won't have the comm event
> > for it.
> 
> pid_synthesize_comm_event() should have taken care of that..
> 
> > So if we can't find the comm event for a given thread, we look at the
> > traces that may contain these informations.
> 
> Sure, but it would be good to find out why the synthesize bits didn't
> work as expected.


Oh you're right, I didn't notice it.

And it's weird, I've just done some tests, and I always
have the same pids that are found inside the events but
but not in /proc:

7989 -> npviewer.bin
5467 -> xchat
5124 -> firefox
7929 -> npviewer.bin

That's weird. I'm going to look further on the proc filesystem.