From: Peter Zijlstra <peterz@infradead.org>
To: "Stephan Bärwolf" <stephan.baerwolf@tu-ilmenau.de>
Cc: Ingo Molnar <mingo@elte.hu>,
Linus Torvalds <torvalds@linux-foundation.org>,
Nikhil Rao <ncrao@google.com>, Mike Galbraith <efault@gmx.de>,
"Nikunj A. Dadhania" <nikunj@linux.vnet.ibm.com>,
Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] sched: fix/optimise calculation of weight-inverse
Date: Wed, 11 May 2011 21:49:53 +0200 [thread overview]
Message-ID: <1305143393.2914.255.camel@laptop> (raw)
In-Reply-To: <4DCAC8FC.5060505@tu-ilmenau.de>
On Wed, 2011-05-11 at 19:35 +0200, Stephan Bärwolf wrote:
> Thus the "err" of the old way can become very large (up to about 2^31 ).
> And of course the new error increases with increasing weight, it is
> still alway
> smaller than the oldway err (because oldway inv converts to newway inv)...
Your table got white-space mungled, but I'll take your word for it. I'll
give the patch a spin tomorrow (without the weight==0 bits), since by
brain officially gave up for today ;-)
prev parent reply other threads:[~2011-05-11 19:46 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-11 16:03 [PATCH] sched: fix/optimise calculation of weight-inverse Stephan Bärwolf
2011-05-11 16:20 ` Ingo Molnar
2011-05-11 16:43 ` Peter Zijlstra
2011-05-11 17:35 ` Stephan Bärwolf
2011-05-11 19:49 ` Peter Zijlstra [this message]
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