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Date: Wed, 30 Mar 2011 16:53:28 +0200
From: Frederic Weisbecker <fweisbec@gmail.com>
To: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: LKML <linux-kernel@vger.kernel.org>, Stable <stable@kernel.org>,
        Ingo Molnar <mingo@elte.hu>,
        Arnaldo Carvalho de Melo <acme@redhat.com>,
        Paul Mackerras <paulus@samba.org>,
        Stephane Eranian <eranian@google.com>
Subject: Re: [PATCH] perf: Rebase max unprivileged mlock threshold on top
 of page size
Message-ID: <20110330145324.GB2204@nowhere>
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On Wed, Mar 30, 2011 at 04:40:28PM +0200, Peter Zijlstra wrote:
> On Wed, 2011-03-30 at 16:04 +0200, Frederic Weisbecker wrote:
> > +int sysctl_perf_event_mlock __read_mostly = (129 * PAGE_SIZE) / 1024; /* 'free' kb per user */
> 
> I'm fairly sure you don't want to do this either: 
>   512 + (PAGE_SIZE / 1024)
> should do I think, there's no reason to further inflate things for large
> page platforms.

Right, that also requires to fix tools that use a default number of pages instead
of computing nr_pages on top of page size and a default kb size.

Will respin by fixing both sides.

Thanks.
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