Roman Gorohov. wrote:

-CUT-

That seems like true, and I forget to mention that 2/3 of swap is
located at physical disk(da0).
[EMAIL PROTECTED] ~]#swapinfo
Device          1K-blocks     Used    Avail Capacity  Type
/dev/da0s1b        524160   463300    60860    88%    Interleaved
/dev/rvn0b        1048448   578724   469724    55%    Interleaved
Total             1572608  1042024   530584    66%

But what I can't understand - why such non-critical(as it seems to me) disk 
activity,
cause 100% busyness for disk? Its claim to be 40.000MB/s transfers, but
sometimes its 100% busy when iostat show only 1 MB/s.

Regards, Roman.

Imagine 1000 request per second and every request is 1KB,
and compare it with a single request that is 1MB.

In first variant your disk will be 100% busy and in the second 2-3%.
I think you can guess why ?


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--
Best Wishes,
Stefan Lambrev
ICQ# 24134177
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