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c.f. bug 424647
List Archive: gentoo-amd64
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To: gentoo-amd64@g.o
From: Frank Peters <frank.peters@...>
Subject: Re: Possible Math Problem - Request For Verification
Date: Sat, 25 Jun 2011 21:10:03 -0400
On Sat, 25 Jun 2011 17:22:41 -0700
Mark Knecht <markknecht@...> wrote:

> 
> Like Marc's results I do not see the cabsd failure. This machine is an
> Intel i7-980x Extreme running Gentoo 64-bit mostly stable.
> 

Thanks for doing these tests.  I appreciate it very much.  Since both of you
see the same results, my machine must be messed up somewhere and I'll have
to do some digging.

Floating point performance seems to have improved dramatically on Linux
since this test was released in 1995.  The original source code (not
my patched version) contains the 1995 test logs from Linux and other
machines and the results are terrible.  But other machines (like SunOS)
aced everything.

Another good test is paranoia:

http://people.sc.fsu.edu/~jburkardt/c_src/paranoia/paranoia.html

Linux used to flop during some portions of this test but now it gets
a perfect score.

Frank Peters



References:
Possible Math Problem - Request For Verification
-- Frank Peters
Re: Possible Math Problem - Request For Verification
-- Marc Joliet
Re: Possible Math Problem - Request For Verification
-- Mark Knecht
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Updated Jun 28, 2012

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