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Date: Mon, 09 Apr 2007 06:23:18 +0200 From: Mike Galbraith <efault@....de> To: Rene Herman <rene.herman@...il.com> Cc: Ingo Molnar <mingo@...e.hu>, Gene Heskett <gene.heskett@...il.com>, linux-kernel@...r.kernel.org, Con Kolivas <kernel@...ivas.org>, Andrew Morton <akpm@...ux-foundation.org>, ck list <ck@....kolivas.org> Subject: Re: Ten percent test On Sun, 2007-04-08 at 20:51 +0200, Rene Herman wrote: > 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@....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@...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... Well of course not. Making random untested changes, and reverting them later is half the fun of kernel development. -Mike - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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