Thomas Løcke [2007-12-18 15:57] :

> Lester Caine wrote:
>> Well cached is a tenth of yours - 337Mb/sec but buffered is 84Mb/sec so I
>> don't see that is a bottleneck particularly?
>
> This does seem very low to me. I'm not sure it's the one and only source
> of your problems, but 337 is very low for cached performance.
>

yes
On a AsusP5B with an old first generation sata drive (37Gb) I get :
/dev/sda:
Timing cached reads: 2586 MB in 2.00 seconds = 1293.51 MB/sec
Timing buffered disk reads: 136 MB in 3.02 seconds = 45.07 MB/sec

# uname -a
Linux stryke 2.6.22.12-desktop-1mdv #1 SMP Tue Nov 20 13:15:05 EST 2007 x86_64 Intel(R)
Core(TM)2 CPU 6300 @ 1.86GHz GNU/Linux