Messages in this thread | | | Date | Tue, 5 Feb 2008 10:18:11 -0800 (PST) | From | Linus Torvalds <> | Subject | Re: Integration of SCST in the mainstream Linux kernel |
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On Tue, 5 Feb 2008, Bart Van Assche wrote: > > Results that I did not expect: > * A block transfer size of 1 MB is not enough to measure the maximal > throughput. The maximal throughput is only reached at much higher > block sizes (about 10 MB for SCST + SRP and about 100 MB for STGT + > iSER).
Block transfer sizes over about 64kB are totally irrelevant for 99% of all people.
Don't even bother testing anything more. Yes, bigger transfers happen, but a lot of common loads have *smaller* transfers than 64kB.
So benchmarks that try to find "theoretical throughput" by just making big transfers should just be banned. They give numbers, yes, but the numbers are pointless.
Linus
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