Messages in this thread | | | Date | Fri, 28 Mar 2003 17:17:36 -0800 | From | Patrick Mansfield <> | Subject | Re: [Lse-tech] Re: [OSDL][BENCHMARK] DBT-2 2.5.65/mjb/osdl comparison data |
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On Fri, Mar 28, 2003 at 03:52:24PM -0800, Mary Edie Meredith wrote: > No, I didn't capture read profiles on the non-cached cases. I will be > collecting readprofile on all cases when I go to 2.5.66, but I didn't on > this round. > > If you have a special interest, I can go back and get the data. It > takes 2hrs per kernel. If you could identify a subset most interesting > to you, I can do those first.
I am wondering if you are seeing any lock contention for the host_lock/queue_lock in scsi.
There are some patches not in mainline that I would like to see run against a multi-disk IO intensive benchmark.
They are currently applied in this bk tree:
bk://linux-scsi.bkbits.net/scsi-locking-2.5
Or, I could send you a patch against 2.5.66.
If you can run with the above and compare to 2.5.66 I would appreciate it (readprofiles for both cases would still be useful). I would hope to see at least lower system times.
Thanks.
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