OK, testing now with 1000 backends and 2000 buffers. Will report.
> Bruce Momjian <[EMAIL PROTECTED]> writes: > > No scale factor, as I illustrated from the initialization command I > > used. Standard buffers too. Let me know what values I should use for > > testing. > > Scale factor has to be >= max number of clients you use, else you're > just measuring serialization on the "branch" rows. > > I think the default NBuffers (64) is too low to give meaningful > performance numbers, too. I've been thinking that maybe we should > raise it to 1000 or so by default. This would trigger startup failures > on platforms with small SHMMAX, but we could tell people to use -B until > they get around to fixing their kernel settings. It's been a long time > since we fit into a 1-MB shared memory segment at the default settings > anyway, so maybe it's time to select somewhat-realistic defaults. > What we have now is neither very useful nor the lowest common > denominator... > > regards, tom lane > -- Bruce Momjian | http://candle.pha.pa.us [EMAIL PROTECTED] | (610) 853-3000 + If your life is a hard drive, | 830 Blythe Avenue + Christ can be your backup. | Drexel Hill, Pennsylvania 19026 ---------------------------(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
