Re: howto boost write(2) performance?
From: Michael Stiller
Date: Wed Oct 10 2007 - 02:26:49 EST
>
> The kernel really cannot sustain 125MB/s? I assume the disk
> array is capable?
Yes, the array should be capable, LSI controller U320, SATA disks inside
the array.
> Where is the bottleneck? Does it keep all disks busy, or are
> the CPUs overloaded?
I'm not sure where the bottleneck is. CPU Load goes up with
many pdflush processes in D state.
Thanks for the suggestions with sg and O_DIRECT so far,
will try this.
-Michael
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