[EMAIL PROTECTED] (Mark Rae) writes: > On Mon, Mar 14, 2005 at 06:52:58AM -0500, Rick Schumeyer wrote: >> Below are some PRELIMINARY results in comparing the performance of pgsql and >> mysql. >> ... >> I have not yet done any testing of transactions, multiple concurrent >> processes, etc. >> > > I would say that doing the concurrency tests is probably the most > important factor in comparing other databases against MySQL, as > MySQL will almost always win in single-user tests. > > E.g. here are some performance figures from tests I have done in the past. > This is with a 6GB databse on a 4CPU Itanium system running a mixture of > read-only queries, but it is fairly typical of the behaviour I have seen. > The Oracle figures also scaled in a similar way to postgres. > > Clients 1 2 3 4 6 8 12 16 32 64 > 128 > ------------------------------------------------------------------------------- > mysql-4.1.1 1.00 1.41 1.34 1.16 0.93 1.03 1.01 1.00 0.94 0.86 > 0.80 > pg-7.4.1 0.65 1.27 1.90 2.48 2.45 2.50 2.48 2.51 2.49 2.39 > 2.38
Could you elaborate on what the measures are here? I don't quite follow what "0.8" means as compared to "2.38." -- let name="cbbrowne" and tld="cbbrowne.com" in String.concat "@" [name;tld];; http://www.ntlug.org/~cbbrowne/linuxxian.html A VAX is virtually a computer, but not quite. ---------------------------(end of broadcast)--------------------------- TIP 5: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faq
