This bug may be a duplicate of #131094 even though I have not marked it
as such (yet). See the comment at
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/131094/comments/235
and test your workload against it. Note that this has been a workload
sensitive problem. You may have another problem further into the I/O
subsystem but eliminating this issue should be the first step, i.e. if
we eliminate the I/O from VM thrashing, NCQ etc. become less of an
issue. If you have further problems as indicated in earlier comments,
we can then pursue potential problems in the SATA layer. Thank you.
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
** Changed in: linux (Ubuntu)
Assignee: (unassigned) => Jim Lieb (lieb)
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Very poor desktop response (high latency) during I/O-load with SATA+NCQ
https://bugs.launchpad.net/bugs/343371
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