From: Ronald G Minnich <rminnich@lanl.gov>
To: <9fans@cse.psu.edu>
Subject: Re: [9fans] Performance
Date: Tue, 8 May 2001 20:09:53 -0600 [thread overview]
Message-ID: <Pine.LNX.4.30.0105082008470.6662-100000@white.acl.lanl.gov> (raw)
In-Reply-To: <20010508213335.E2ACC19A28@mail.cse.psu.edu>
On Tue, 8 May 2001, Russ Cox wrote:
> On the other hand, lmbench might be more suited to
> Plan 9 than to Unix. At least on Plan 9 you can
> be more certain that you're measuring something real,
> as opposed to code that gcc has optimized into the
> empty instruction sequence.
Don't be too hard on it. Some tests are useful. I have always had good
luck with the memory stuff, to the point that a good digital scope and
lmbench agree on memory cycle time to within a few ns +-. Handy if you
don't want to rip the machine open and measure it.
ron
next prev parent reply other threads:[~2001-05-09 2:09 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-05-08 21:33 Russ Cox
2001-05-09 2:09 ` Ronald G Minnich [this message]
2001-05-10 15:15 ` Douglas A. Gwyn
-- strict thread matches above, loose matches on Subject: below --
2001-05-11 13:52 jmk
2001-05-10 17:21 jmk
2001-05-11 8:33 ` Douglas A. Gwyn
2001-05-09 14:47 Richard Miller
2001-05-10 15:14 ` Douglas A. Gwyn
2001-05-09 13:03 presotto
2001-05-09 12:57 jmk
2001-05-09 8:58 forsyth
2001-05-09 6:03 nemo
2001-05-08 21:25 jmk
2001-05-08 18:20 jmk
2001-05-09 8:29 ` Peter Schay
2001-05-08 17:54 nemo
2001-05-08 18:46 ` Scott Schwartz
2001-05-08 17:42 Fariborz 'Skip' Tavakkolian
2001-05-08 18:07 ` aam396
2001-05-08 22:38 ` Boyd Roberts
2001-05-08 17:40 presotto
2001-05-08 18:45 ` Scott Schwartz
2001-05-09 5:35 ` Franklin Robert Araujo Fran€a
2001-05-10 8:43 ` Juhani Forsman
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