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* On Tue Jul-26-2005 at 09:50:00 AM -0700, Duncan said: |
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[...] |
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> Of course, that's just supposition, here. If those with the 1100/2200 |
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> rates would confirm whether they are running in dual-channel memory mode, |
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> as I suspect, and you confirm that you are running single-channel mode, as |
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> I am, it'll pretty much confirm that supposition, however. |
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|
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glibc-2.3.5 (patched) |
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gentoo-sources-2.6.12-r4 |
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linux-headers-2.6.11-r2 |
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2x Opteron 246 (2GHz) |
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2x 512M, on processor #0 (dual channel) |
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|
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% ./a.out 2000 5000 1048576 |
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Memory to memory copy rate = 1367.611206 MBytes / sec. Block size = 1048576. |
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% ./a.out 4000 5000 1048576 |
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Memory to memory copy rate = 2822.960693 MBytes / sec. Block size = 1048576. |
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|
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Since only 1 processor is used in this test I'm not sure which processor |
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speed I should use, and hence which result is accurate. In any case they |
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take the same amount of time, ~3.7s. |
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|
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-- |
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Sami Samhuri |
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