Re: [PATCHSET 0/7] perf sched: Introduce timehist command, again (v2)

From: Namhyung Kim
Date: Tue Nov 22 2016 - 02:00:56 EST


Hi Jiri,

On Wed, Nov 16, 2016 at 04:34:28PM +0100, Jiri Olsa wrote:
> On Wed, Nov 16, 2016 at 03:06:26PM +0900, Namhyung Kim wrote:
> > Hello,
> >
> > This patchset is a rebased version of David's sched timehist work [1].
> > I plan to improve perf sched command more and think that having
> > timehist command before the work looks good. It seems David is busy
> > these days, so I'm retrying it by myself.
> >
> > * changes in v2)
> > - change name 'b/n time' to 'wait time' (Ingo)
> > - show arrow between functions in the callchain (Ingo)
> > - fix a bug in calculating initial run time
>
> you might want to add some column width cuts.. I've got this:

The task name column width is initially set to 20, and grow
dynamically when longer name + tid/pid is found. Maybe I need to
change it to have the max width initially.. (in later patch).

>
> time cpu task name wait time sch delay run time
> [tid/pid] (msec) (msec) (msec)
> --------------- ------ -------------------- --------- --------- ---------
> 482381.387934 [0000] perf[6870] 0.000 0.000 0.000
> 482381.388838 [0002] <idle> 0.000 0.000 0.000
> 482381.388845 [0002] plugin-containe[25990/25970] 0.000 0.004 0.007
> 482381.388897 [0003] <idle> 0.000 0.000 0.000
> 482381.388919 [0002] <idle> 0.007 0.000 0.074
> 482381.388925 [0003] Timer[15210/15178] 0.000 0.002 0.027
>
>
>
> other than that:
>
> Acked-by: Jiri Olsa <jolsa@xxxxxxxxxx>

Thanks,
Namhyung