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Message-Id: <20090129153709.f368625e.akpm@linux-foundation.org> Date: Thu, 29 Jan 2009 15:37:09 -0800 From: Andrew Morton <akpm@...ux-foundation.org> To: Ingo Molnar <mingo@...e.hu>, Peter Zijlstra <a.p.zijlstra@...llo.nl>, Mike Galbraith <efault@....de>, Gregory Haskins <ghaskins@...ell.com> Cc: linux-kernel@...r.kernel.org Subject: sched behaviour (was: Re: linux-next: Tree for January 26) On Mon, 26 Jan 2009 19:23:49 +1100 Stephen Rothwell <sfr@...b.auug.org.au> wrote: > I have created today's linux-next tree at > git://git.kernel.org/pub/scm/linux/kernel/git/sfr/linux-next.git The machine is 8-way x86_64. In one window it is running `make -j32 vmlinux'. In another window I run the `fpatch' command. fpatch is a scruffy shell script from http://userweb.kernel.org/~akpm/stuff/patch-scripts.tar.gz which does a few mv's, cp's, etc. current mainline: akpm2:/usr/src/25> time fpatch b kernel/sched.c fpatch b kernel/sched.c 0.02s user 0.09s system 33% cpu 0.338 total Jan 26 linux-next: akpm2:/usr/src/25> time fpatch b kernel/sched.c fpatch b kernel/sched.c 0.02s user 0.05s system 0% cpu 32.739 total Machine basically unusable, user unhappy! I'm assuming it's a scheduler problem - everything is in pagecache. -- 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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