linux-kernel - Re: [PATCH] perf: Store active software events in a hashlist

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Message-ID: <20100407115251.GC5143@nowhere>
Date:	Wed, 7 Apr 2010 13:52:53 +0200
From:	Frederic Weisbecker <fweisbec@...il.com>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Ingo Molnar <mingo@...e.hu>, LKML <linux-kernel@...r.kernel.org>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Paul Mackerras <paulus@...ba.org>
Subject: Re: [PATCH] perf: Store active software events in a hashlist

On Wed, Apr 07, 2010 at 11:02:26AM +0200, Peter Zijlstra wrote:
> On Mon, 2010-04-05 at 16:08 +0200, Frederic Weisbecker wrote:
> > +#define SWEVENT_HLIST_BITS     8
> > +#define SWEVENT_HLIST_SIZE     ((1 << (SWEVENT_HLIST_BITS + 1)) - 1)
> 
> That seems to result in 9 bits worth, doesn't it?


Oh right, I was confused, will zapp the + 1.

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