Re: Integration of SCST in the mainstream Linux kernel

[Linus Torvalds]

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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