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Re: [Bug-gnubg] Attempt to speed up single threaded use in multi threade


From: Jonathan Kinsey
Subject: Re: [Bug-gnubg] Attempt to speed up single threaded use in multi threaded build
Date: Mon, 31 Aug 2009 06:27:07 +0000

Michael Petch wrote:
>
> I have my tests running for the next few hours. But here is one thing I
> can say (preliminary data) .I have an 800 move match being analysed 10
> times under each scenario (and the results being md5 checksummed) . New
> and old builds have SSE2 on fully optimized with –O3, GUI Build running
> with –t option to suppress the graphics. . I’m using 32 Bit Debian Lenny
> Stable on a dual quad core system. With the multithreaded new and old
> builds) the new code in CVS is ~2.5% faster when Threads=Cores vs old
> code.

That doesn't seem right... The new build shouldn't be any faster than the old
in this case, unless there is a performance change in the last week?

Jon




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