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SubjectRe: [RFT][PATCH v7] sata_mv: convert to new EH
dean gaudet wrote:
> On Thu, 12 Jul 2007, Jeff Garzik wrote:
>
>> dean gaudet wrote:
>>> oh very nice... no warnings on boot, and no warnings while i "dd if=/dev/sdX
>>> of=/dev/null" and i'm seeing 74MB/s+ from each disk on this simple read
>>> test.
>>>
>>> for lack of a better test i started an untar/diff stress test on the
>>> disks... we'll see how it goes. (it's based on doug ledford's memtest.sh)
>> Thanks for the testing. Looks like we might have hit on something good...
>
> yep this does look good. no problems overnight in the untar/diff/rm
> workload. if you've got any other workload you'd like me to throw at it,
> let me know. i might be able to scare up a disk or two with errors to
> check error handling.

Nothing specific. I usually just throw various workloads at it, both
throughput-intensive, seek-intensive, multiple threads at the same time,
stressing multiple disks at the same time, etc.

I presume from your past messages your tests include multiple disks at
the same time?


> i tested hotplug just for kicks... no luck there :) but then you didn't
> say that would work yet.

hehehe Well I sorta didn't want to mention it, to avoid clouding the
waters further.

In theory, hotplug and hot unplug -should- work, in version 7. Your
report is a useful contradiction of that theory, and signals where to
poke next. Since all this hacking is a spare-time effort, so promises
as to when next I'll poke at it. It might be tomorrow, or a month from
now. Getting "new EH" upstream was a big hurdle to overcome, and your
testing really helped that along.

Anyway, something like Version 7 is probably what I will push upstream
for 2.6.23-rc1.

Jeff


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