From: EBo <ebo@sandien.com>
To: <9fans@9fans.net>
Subject: Re: [9fans] nsec limits?
Date: Mon, 1 Aug 2011 12:12:22 -0500 [thread overview]
Message-ID: <81c4d9d5aef94a678b81f7fc7a11cf80@swcp.com> (raw)
In-Reply-To: <CAP6exYK=p0SL0rVcscwCymqaJKd9fQyW=2RouEe6KDD=E=4NNQ@mail.gmail.com>
On Mon, 1 Aug 2011 08:57:13 -0700, ron minnich wrote:
> What kind of timing tests? What kind of accuracy are you looking for?
> What platform?
It is for the HARE project (Plan 9 on the BG/P). I am basically
running direct comparisons against Brazil, which also used nsec. I need
to calc the time used in each of several steps in starting, stopping,
and running tasks as well as the time it takes to distribute input data
and accumulate the results. From the published results I'm guessing
that I need millisecond resolution, but not sure of the requirements.
At this point I am following after Brazil's original implementation,
however I also built a little tool to cache timestamps in memory and
grab them from anywhere in the code. If you have other suggestions I
would love to hear them.
EBo --
next prev parent reply other threads:[~2011-08-01 17:12 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-01 12:17 EBo
2011-08-01 12:36 ` erik quanstrom
2011-08-01 13:22 ` EBo
2011-08-01 15:57 ` ron minnich
2011-08-01 17:12 ` EBo [this message]
2011-08-01 17:17 ` ron minnich
2011-08-01 20:25 ` EBo
2011-08-01 22:25 ` Charles Forsyth
2011-08-01 22:51 ` EBo
2011-08-01 23:06 ` ron minnich
2011-08-01 23:31 ` EBo
2011-08-01 23:14 ` Charles Forsyth
2011-08-01 23:19 ` Charles Forsyth
2011-08-01 23:49 ` EBo
2011-08-01 23:25 ` erik quanstrom
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