Tomasz Chmielewski, on 04/14/2009 03:07 PM wrote:
Vladislav Bolkhovitin schrieb:
Could anyone recheck if it's the same on some other system?
Which IO scheduler on the target did you use? I guess, deadline? If
so, you should try with CFQ as well.
I used CFQ.
You didn't apply io_context-XXX.patch, correct? With it you should see a
noticeable increase, like in http://scst.sourceforge.net/vl_res.txt.
I didn't apply this one.
I used 2.6.26.x kernel and io_context-XXX.patch was for 2.6.27, 2.6.28
and 2.6.29 only; 2.6.27 fails to apply to 2.6.26.8 kernel (perhaps in a
trivial way, I didn't check).
Yes, io_context patch for 2.6.26.x kernels doesn't exist, because it
isn't clear if it has the necessary functionality.
But it's worth for you to upgrade to 2.6.27.x. Have you seen
http://scst.sourceforge.net/vl_res.txt?
Vlad
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