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 Mark
Mark Kirkwood wrote:> 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). >Would have been even better if I'd spelled "sequential" correctly in the subject :-(... I'm also seeing sequential write speed increasing from 120Mb/s to 140Mb/s. I did wonder if this increased IO throughput is what is triggering the posts about data corruption in 6.1 - i.e. more throughput means more heat to dissipate! Cheers Mark