On Wed, May 24, 2006 at 04:09:54PM -0400, Daniel J. Luke wrote: > On May 24, 2006, at 4:03 PM, Steinar H. Gunderson wrote: > >Have you tried fiddling with the checkpointing settings? Check your > >logs -- > >if you get a warning about checkpoints being too close together, > >that should > >give you quite some boost. > > no warnings in the log (I did change the checkpoint settings when I > set up the database, but didn't notice an appreciable difference in > insert performance). Keep in mind that the default warning time of 30 seconds is pretty conservative; you'd want to bump that up to 300 seconds or so, probably. As for the suggestion of multiple insert runs at a time, I suspect that would just result in a lot of contention for some mutex/semaphore in the index. Your best bet really is to run gprof and post those results. It's also possible that this is fixed be a recent patch to HEAD that reduces the amount of traffic on the index metapage, something gprof would probably confirm. -- Jim C. Nasby, Sr. Engineering Consultant jnasby@xxxxxxxxxxxxx Pervasive Software http://pervasive.com work: 512-231-6117 vcard: http://jim.nasby.net/pervasive.vcf cell: 512-569-9461
