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Subject: Re: [PATCH 14/16] sched: make __update_entity_runnable_avg() fast
From: Peter Zijlstra <peterz@infradead.org>
To: Paul Turner <pjt@google.com>
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Date: Wed, 04 Jul 2012 19:20:08 +0200
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On Wed, 2012-07-04 at 17:41 +0200, Peter Zijlstra wrote:
> On Wed, 2012-06-27 at 19:24 -0700, Paul Turner wrote:
> > +#define LOAD_AVG_MAX 46742 /* maximum possible load avg */
> 
> With 1024 * 1/(1-y), with y^32 = 0.5 I get 47788.. sup?

Ah, if we do the series starting at 1 we get: 1024*y/(1-y) which yields:
46764. So you're not adding the first term u_0?