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> On Sat, 2005-07-23 at 16:48 +0200, Simon Strandman wrote: |
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> > With the glibc 2.3.5 currently in gentoo I get: |
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> > isidor ~ # ./memcpy 2200 1000 1048576 |
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> > Memory to memory copy rate = 1291.600098 MBytes / sec. Block size = 1048576. |
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> > |
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> > But with glibc 2.3.5 + amd64 optimized strings I get: |
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> > isidor ~ # ./memcpy 2200 1000 1048576 |
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> > Memory to memory copy rate = 2389.321777 MBytes / sec. Block size = 1048576. |
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> > |
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> > That's an improvement of over 1000mb/s! Suse 9.3 also gives about |
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> > 2300mb/s out of the box. |
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|
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pre: |
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./memcpy 2000 1000 1048576 |
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Memory to memory copy rate = 1302.701782 MBytes / sec. Block size = 1048576. |
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|
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post: |
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./memcpy 2000 1000 1048576 |
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Memory to memory copy rate = 2051.979980 MBytes / sec. Block size = 1048576. |
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|
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AMD64 3200+ 2.0GHz |
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1024MB PC2700 |
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Compaq R3240US |
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-- |
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