On 1/23/09, Ibrahim Harrani <ibrahim.harrani@xxxxxxxxx> wrote: > Hi Craig, > > Here is the result. It seems that disk write is terrible!. > > root@myserver /usr]# time (dd if=/dev/zero of=bigfile bs=8192 > count=1000000; sync) Note, while sequential write speeds are a good indication of general raid crappyness, they are not the main driver of your low pgbench results (buy they may be involved with poor insert performance) That is coming from your seek performance, which is also lousy at ~130 according to bonnie. merlin -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
