-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Wed, 19 Dec 2007 11:14:08 -0800 Ron Mayer <rm_pg@xxxxxxxxxxxxxxxxxxxxxxx> wrote: > Joshua D. Drake wrote: > > Actually this is not true. Although I have yet to test 8.3. It is > > pretty much common knowledge that after 8 cores the acceleration of > > performance drops with PostgreSQL... > > > > This has gotten better every release. 8.1 for example handles 8 > > cores very well, 8.0 didn't and 7.4 well.... :) > > I agree with the spirit of what you say, but are you overstating > things a bit? My point was :)... which that PDF actually illustrates is the gain between say 2 cores and 8 cores is greater than 8 and 16 and even less when you go beyond 16. > > Benchmarks I see[1] suggest that 8.1.2 scaled pretty reasonably to 16 > cores (from the chart on page 9 in the link below). But yeah, 8.0 > scaled to maybe 2 cores if you're lucky. :-) I really need to check this test out more though because their numbers don't reflect mine. I wonder if that is per connection. Sincerely, Joshua D. Drake - -- The PostgreSQL Company: Since 1997, http://www.commandprompt.com/ Sales/Support: +1.503.667.4564 24x7/Emergency: +1.800.492.2240 Donate to the PostgreSQL Project: http://www.postgresql.org/about/donate SELECT 'Training', 'Consulting' FROM vendor WHERE name = 'CMD' -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iD4DBQFHaXjxATb/zqfZUUQRAhlyAJijNIytenaBH2c5mEivFCT4qRmPAKCiW7Qn 2CDwNUBNd463Kz7G6n68yA== =bnaL -----END PGP SIGNATURE----- ---------------------------(end of broadcast)---------------------------TIP 3: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faq
