Peter Eisentraut <[EMAIL PROTECTED]> writes: > I know you like it in that range, and 4 or 8 MB of buffers by default > should not be a problem. But personally I think if the optimal buffer > size does not depend on both the physical RAM you want to dedicate to > PostgreSQL and the nature and size of the database, then we have achieved > a medium revolution in computer science. ;-)
But this is not about "optimal" settings. This is about "pretty good" settings. As long as we can get past the knee of the performance curve, I think we've done what should be expected of a default parameter set. I believe that 1000 buffers is enough to get past the knee in most scenarios. Again, I haven't got hard evidence, but that's my best guess. regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 3: if posting/reading through Usenet, please send an appropriate subscribe-nomail command to [EMAIL PROTECTED] so that your message can get through to the mailing list cleanly