Re: libata sata_via unusual behaviour

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> real    5m16.352s
> user    0m0.132s
> sys     0m6.244s

So the CPU usage is ok

> root@ubuntu:/media/disk/movies# ls -la Lo\ squalo.avi
> -rw-r----- 1 1000 1001 1559521280 2008-03-30 06:37 Lo squalo.avi
> 
> it means roughly those old 5mb/sec.
> In the meanwhile i checked with top, and all the cpu cycles were taken
> by the disk (about 98.0%wa and 0.0%id)

98.0%wa - wait time, not CPU time.

Its still a very slow copy rate unless the disks are on the same IDE
channel. How is the disk set up - ext3 direct or via raid/lvm ?

Also is a copy of the movie to /dev/null slow or fast, ditto a copy
from /dev/zero to disk of that sort of size ?

Alan
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