Sequantial IO Performance improvement in 6.1-STABLE

Mark Kirkwood markir at
Tue May 16 23:32:25 PDT 2006

I recently upgraded my FreeBSD machines from 6.0R to 6.1-STABLE

I noticed a pleasant surprise - improved disk IO!

In 6.0R best sequential throughput I ever saw was 170 MB/s (32k block 
size reads on an 4G file). In 6.1-STABLE I'm seeing 190 Mb/s (32k block 
size reads on an 4G file).

The machine in question is a Supermico P3TDER with 2G RAM, a 3Ware 7506 
and 4 Maxtor 6Y080P0 RAID0.

So anyway - very nice.

Best wishes


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