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From: Andrew Morton <akpm@linux-foundation.org>
To: Ingo Molnar <mingo@elte.hu>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>,
	Mike Galbraith <efault@gmx.de>,
	Gregory Haskins <ghaskins@novell.com>
Cc: linux-kernel@vger.kernel.org
Subject: sched behaviour (was: Re: linux-next: Tree for January 26)
Date: Thu, 29 Jan 2009 15:37:09 -0800	[thread overview]
Message-ID: <20090129153709.f368625e.akpm@linux-foundation.org> (raw)
In-Reply-To: <20090126192349.1804bc27.sfr@canb.auug.org.au>

On Mon, 26 Jan 2009 19:23:49 +1100
Stephen Rothwell <sfr@canb.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.

      reply	other threads:[~2009-01-29 23:38 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-01-26  8:23 linux-next: Tree for January 26 Stephen Rothwell
2009-01-29 23:37 ` Andrew Morton [this message]

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