This bug is missing log files that will aid in diagnosing the problem.
>From a terminal window please run:
apport-collect 1385123
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1385123
Title:
ubuntu 3.13.0-32-generic kernel IO problem
Status in “linux” package in Ubuntu:
Incomplete
Bug description:
1、Cannot set IO scheduler
root@VM-132-36-ubuntu:~# echo "deadline" > /sys/block/vda/queue/scheduler
root@VM-132-36-ubuntu:~# cat /sys/block/vda/queue/scheduler
none
2、iostat display high iowait
avg-cpu: %user %nice %system %iowait %steal %idle
0.09 0.00 0.13 0.15 0.00 99.62
Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz
avgqu-sz await r_await w_await svctm %util
vda 0.07 0.61 0.77 0.61 15.21 14.03 42.26
0.01 22228.49 23156.92 21049.84 1.47 0.20
vdb 0.00 0.00 0.02 0.00 0.07 0.00 8.38
0.00 109.49 109.49 0.00 1.99 0.00
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