linux-kernel - Re: BFS vs. mainline scheduler benchmarks and measurements

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Date:	Wed, 09 Sep 2009 21:32:58 +1000
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	David Newall <davidn@...idnewall.com>
Cc:	Frans Pop <elendil@...net.nl>,
	Arjan van de Ven <arjan@...radead.org>, realnc@...or.de,
	linux-kernel@...r.kernel.org
Subject: Re: BFS vs. mainline scheduler benchmarks and measurements

On Wed, 2009-09-09 at 20:44 +0930, David Newall wrote:
> Benjamin Herrenschmidt wrote:
> > On Tue, 2009-09-08 at 22:22 +0200, Frans Pop wrote:
> >   
> >> Arjan van de Ven wrote:
> >>     
> >>> the latest version of latencytop also has a GUI (thanks to Ben)
> >>>       
> >> That looks nice, but...
> >>
> >> I kind of miss the split screen feature where latencytop would show both 
> >> the overall figures + the ones for the currently most affected task. 
> >> Downside of that last was that I never managed to keep the display on a 
> >> specific task.
> >>     
> >
> > Any idea of how to present it ? I'm happy to spend 5mn improving the
> > GUI :-) 
> 
> Use a second window.

I'm not too fan of cluttering the screen with windows... I suppose I
could have a separate pane for the "global" view but I haven't found a
way to lay it out in a way that doesn't suck :-) I could have done a 3rd
colums on the right with the overall view but it felt like using too
much screen real estate.

I'll experiment a bit, maybe 2 windows is indeed the solution. But you
get into the problem of what to do if only one of them is closed ? Do I
add a menu bar on each of them to re-open the "other" one if closed ?
etc...

Don't get me wrong, I have a shitload of experience doing GUIs (back in
the old days when I was hacking on MacOS), though I'm relatively new to
GTK. But GUI design is rather hard in general :-)

Ben.

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