Re: [PATCH 1/1] Perf: fix overwritten of free running PEBSv3 timestamp

From	Peter Zijlstra <peterz@infradead.org>
Newsgroups	linux.kernel
Subject	Re: [PATCH 1/1] Perf: fix overwritten of free running PEBSv3 timestamp
Date	2016-02-11 18:30 +0100
Message-ID	<r13e2-3rD-5@gated-at.bofh.it> (permalink)
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On Thu, Feb 11, 2016 at 11:39:18AM -0500, Tong Zhang wrote:
> How about moving `time' to the `group', Will this help?

Somewhat, but the patch is still really horrid. It makes t==0 a special
case and seems to scatter this all over the place.

It also consumes the last word in that cacheline :/

There's a few other options, but so far I'm not really liking any of
them very much either :/

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[PATCH 1/1] Perf: fix overwritten of free running PEBSv3 timestamp Tong Zhang <ztong@vt.edu> - 2016-02-10 23:40 +0100
  Re: [PATCH 1/1] Perf: fix overwritten of free running PEBSv3  timestamp Peter Zijlstra <peterz@infradead.org> - 2016-02-11 16:00 +0100
    Re: [PATCH 1/1] Perf: fix overwritten of free running PEBSv3 timestamp Tong Zhang <ztong@vt.edu> - 2016-02-11 17:40 +0100
      Re: [PATCH 1/1] Perf: fix overwritten of free running PEBSv3  timestamp Peter Zijlstra <peterz@infradead.org> - 2016-02-11 18:30 +0100

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