Re: Ten percent test

Rene Herman
2007-04-08T18:52:39Z

On 04/08/2007 12:41 PM, Ingo Molnar wrote:

> this is pretty hard to get right, and the most objective way to change
> it is to do it testcase-driven. FYI, interactivity tweaking has been
> gradual, the last bigger round of interactivity changes were done a year
> ago:
>
> commit 5ce74abe788a26698876e66b9c9ce7e7acc25413
> Author: Mike Galbraith <efault@gmx.de>
> Date: Mon Apr 10 22:52:44 2006 -0700
>
> [PATCH] sched: fix interactive task starvation
>
> (and a few smaller tweaks since then too.)
>
> and that change from Mike responded to a testcase. Mike's latest changes
> (the ones you just tested) were mostly driven by actual testcases too,
> which measured long-term timeslice distribution fairness.

Ah yes, that one. Here's the next one in that series:

commit f1adad78dd2fc8edaa513e0bde92b4c64340245c
Author: Linus Torvalds <torvalds@g5.osdl.org>
Date: Sun May 21 18:54:09 2006 -0700

Revert "[PATCH] sched: fix interactive task starvation"

It personally had me wonder if _anyone_ was testing this stuff...

Rene.