2.6.32-21-generic #32-Ubuntu SMP Fri Apr 16 08:10:02 UTC 2010 i686 GNU/Linux
iostat -m
Linux 2.6.32-21-generic (xxx-eeepc) 30/04/10 _i686_ (2 CPU)
avg-cpu: %user %nice %system %iowait %steal %idle
6.45 0.06 2.23 1.58 0.00 89.69
Device: tps MB_read/s MB_wrtn/s MB_read MB_wrtn
sda 1.52 0.05 0.04 220 148
sdb 3.71 0.03 0.07 131 284
That is the ouput of a lucid kernel, bonnie++ shows 11 MB/s which is a
huge regression from 29MB/s in Karmic both standard kernels.
--
patch from upstream kernel: Large I/O operations result in slow performance and
high iowait times
https://bugs.launchpad.net/bugs/424935
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