From mboxrd@z Thu Jan  1 00:00:00 1970
From: Peter Zijlstra <peterz@infradead.org>
Subject: Re: [PATCH 1/3] perf events: fix WARN_ON_ONCE for 64-bit raw data,
 SW events
Date: Fri, 18 Feb 2011 16:51:56 +0100
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On Fri, 2011-02-18 at 08:28 -0700, David Ahern wrote:

> Why is an 8-byte stride preferred over a 4-bytes?

So as to avoid having to deal with unaligned u64 reads.