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Subject: Re: [PATCH] perf_events: improve DS/BTS/PEBS buffer allocation
From: Peter Zijlstra <peterz@infradead.org>
To: Stephane Eranian <eranian@google.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>,
        Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
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Date: Mon, 13 Sep 2010 19:36:01 +0200
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On Mon, 2010-09-13 at 19:24 +0200, Stephane Eranian wrote:
> Based on this comment, I assume that the only reason the allocation
> of the sampling buffer in perf_buffer_alloc() is immune to this is because
> you are allocating each page individually (order 0). Right? 

Right, and I software stitch the bits together.