[Scst-devel] [ofa-general] WinOF_2_0_5/SRP initiator: slow reads and eventually hangs

Vladislav Bolkhovitin vst at vlnb.net
Mon Sep 14 11:51:11 PDT 2009


Chris Worley, on 09/11/2009 11:50 PM wrote:
> I've definitely removed the switch/firmware from being the cause.
> 
> I'm thinking the reason you can't repeat the test may be latency
> related.  We get ~50usecs average latency (on small block sizes),
> which can't be achieved using regular SSD's (and rotating drives are
> nowhere close).  Maybe a ramdisk would help repeat the issue.

I think you should try to reproduce the problem with ramdisk or nullio. 
By so you will eliminate possible influence of the SSD backend.

Vlad



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