Shridhar Daithankar wrote: <snip> > > > fsync=true (Sad but true. Left untouched.. Will that make a difference on > > > SCSI?) > > > > Definitely. Have directly measured a ~ 2x tps throughput increase on > > FreeBSD when leaving fsync off whilst performance measuring stuff > > recently (PG 7.2.2). Like anything it'll depend on workload, phase of > > moon, etc, but it's a decent indicator. > > I didn't know even that matters with SCSI..Will check out..
Cool. When testing it had FreeBSD 4.6.2 installed on one drive along with the PostgreSQL 7.2.2 binaries, it had the data on a second drive (mounted as /pgdata), and it had the pg_xlog directory mounted on a third drive. Swap had it's own drive as well. Everything is UltraSCSI, etc. Haven't yet tested for a performance difference through moving the indexes to another drive after creation though. That apparently has the potential to help as well. :-) Regards and best wishes, Justin Clift -- "My grandfather once told me that there are two kinds of people: those who work and those who take the credit. He told me to try to be in the first group; there was less competition there." - Indira Gandhi ---------------------------(end of broadcast)--------------------------- TIP 1: subscribe and unsubscribe commands go to [EMAIL PROTECTED]
