Hi Ingo, On Thu, Apr 19, 2007 at 11:01:44AM +0200, Ingo Molnar wrote: > > * Willy Tarreau <[EMAIL PROTECTED]> wrote: > > > Good idea. The machine I'm typing from now has 1000 scheddos running > > at +19, and 12 gears at nice 0. [...] > > > From time to time, one of the 12 aligned gears will quickly perform a > > full quarter of round while others slowly turn by a few degrees. In > > fact, while I don't know this process's CPU usage pattern, there's > > something useful in it : it allows me to visually see when process > > accelerate/decelerate. [...] > > cool idea - i have just tried this and it rocks - you can easily see the > 'nature' of CPU time distribution just via visual feedback. (Is there > any easy way to start up 12 glxgears fully aligned, or does one always > have to mouse around to get them into proper position?)
-- Replying quickly, I'm short in time -- You can certainly script it with -geometry. But it is the wrong application for this matter, because you benchmark X more than glxgears itself. What would be better is something like a line rotating 360 degrees and doing some short stuff between each degree, so that X is not much sollicitated, but the CPU would be spent more on the processes themselves. Benchmarking interactions between X and multiple clients is a completely different test IMHO. Glxgears is between those two, making it inappropriate for scheduler tuning. Regards, Willy - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
