2010/4/9 Greg Smith <greg@xxxxxxxxxxxxxxx>: > RD黄永卫 wrote: >> >> Anybody have the test case of “ context-switching issue on Xeon” from >> Tm lane ？ >> > > That takes me back: > http://archives.postgresql.org/pgsql-performance/2004-04/msg00280.php > > That's a problem seen on 2004 era Xeon processors, and with PostgreSQL > 7.4. I doubt it has much relevance nowadays, given a) that whole area of > the code was rewritten for PostgreSQL 8.1, and b) today's Xeons are > nothing like 2004's Xeons. Note that I found this comment by some guy named Greg from almost a year ago that I thought was relevant. (I'd recommend reading the whole thread.) http://archives.postgresql.org/pgsql-performance/2009-06/msg00097.php -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
