Re: Intel X25-M MLC SSD benchmarks

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On Wed, Dec 10, 2008 at 11:15:12PM +0200, Raz Ben-Yehuda wrote:
> Hello
> I am wondering if anyone tried Intel new disks. I benchmark them and I
> am a bit confused.
> According to the spec a single disk should provide 70MB/s write and 250
> MB/s read. Reads are ok. I am reaching this number, but writes are bad.
> With writes I am getting 20MB/s.
> I am using a dd for the test, and a deadline-line scheduler. 

What command exactly are you using, and have you tried using the no-op
elevator instead of deadline?  Also, what controller is it hooked up to?

-- 
Matthew Wilcox				Intel Open Source Technology Centre
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."
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