On Tue, Jan 03, 2006 at 04:44:28PM -0700, Steve Eckmann wrote: > Are there general guidelines for tuning the PostgreSQL server for this kind > of application? The suggestions I've found include disabling fsync (done), Are you sure you really want this? The results could be catastrophic in case of a crash. > On the client side I've found only two suggestions: disable autocommit and > use COPY instead of INSERT. I think I've effectively disabled autocommit by > batching up to several hundred INSERT commands in each PQexec() call, and > it isn’t clear that COPY is worth the effort in our application. I'm a bit confused here: How can you batch multiple INSERTs into large statements for MySQL, but not batch multiple INSERTs into COPY statements for PostgreSQL? Anyhow, putting it all inside one transaction (or a few) is likely to help quite a lot, but of course less when you have fsync=false. Bunding multiple statements in each PQexec() call won't really give you that; you'll have to tell the database so explicitly. /* Steinar */ -- Homepage: http://www.sesse.net/
