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Mail Archives: djgpp/2006/03/27/23:46:48

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From: Brian Inglis <Brian DOT Inglis AT SystematicSW DOT Invalid>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: gcc 4.10 thinks it is 5x faster than 4.01
Organization: Systematic Software
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Date: Tue, 28 Mar 2006 04:42:15 GMT
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On 27 Mar 2006 15:26:42 -0800 in comp.os.msdos.djgpp, "Bob W"
<dontsend AT operamail DOT com> wrote:

>After checking out gcc version 4.10 the first test already
>revealed a flaw:
>
>My test-program reported that it was running about
>5 times as fast as compared to its 4.01 compiled version.
>
>As I don't believe in miracles, I suspect that a bug has
>crawled into the clock() function and/or the CLOCKS_PER_SEC
>definition.
>
>I have further noticed a 6% jitter in the values which
>are returned by clock() after about 5 seconds. But this is
>not necessarily related to the above mentioned problem.
>
>(Console window, Win XP-P)

Did you recompile and rebuild libc with gcc 4.01 and 4.10? 

-- 
Thanks. Take care, Brian Inglis 	Calgary, Alberta, Canada

Brian DOT Inglis AT CSi DOT com 	(Brian[dot]Inglis{at}SystematicSW[dot]ab[dot]ca)
    fake address		use address above to reply

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