linux-kernel - Re: [RFC PATCH 1/2] perf_events: add support for per-cpu per-cgroup monitoring (v2)

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Date:	Wed, 08 Sep 2010 15:52:47 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	eranian@...gle.com
Cc:	linux-kernel@...r.kernel.org, mingo@...e.hu, paulus@...ba.org,
	davem@...emloft.net, fweisbec@...il.com,
	perfmon2-devel@...ts.sf.net, eranian@...il.com,
	robert.richter@....com, acme@...hat.com
Subject: Re: [RFC PATCH 1/2] perf_events: add support for per-cpu
 per-cgroup monitoring (v2)

On Wed, 2010-09-08 at 15:30 +0200, Stephane Eranian wrote:
> +       } times[NR_CPUS] ____cacheline_aligned_in_smp;

That's fail! NR_CPUS can be like 4k for distro configs.

Use proper per-cpu allocations.
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