If this helps - Quad 2.0GHz XEON with highest load we have seen on the applications, DB performing great -
procs memory swap io system cpu r b w swpd free buff cache si so bi bo in cs us sy id 1 0 0 1616 351820 66144 10813704 0 0 2 0 1 1 0 2 7 3 0 0 1616 349712 66144 10813736 0 0 8 1634 1362 4650 4 2 95 0 0 0 1616 347768 66144 10814120 0 0 188 1218 1158 4203 5 1 93 0 0 1 1616 346596 66164 10814184 0 0 8 1972 1394 4773 4 1 94 2 0 1 1616 345424 66164 10814272 0 0 20 1392 1184 4197 4 2 94 Around 4k CS/sec Chipset is Intel ServerWorks GC-HE. Linux Kernel 2.4.20-28.9bigmem #1 SMP Thanks, Anjan -----Original Message----- From: Dirk Lutzebäck [mailto:[EMAIL PROTECTED] Sent: Tuesday, April 20, 2004 10:29 AM To: Tom Lane; Josh Berkus Cc: [EMAIL PROTECTED]; Neil Conway Subject: Re: [PERFORM] Wierd context-switching issue on Xeon Dirk Lutzebaeck wrote: > c) Dual XEON DP, non-bigmem, HT on, E7500 Intel chipset (Supermicro) > > performs well and I could not observe context switch peaks here (one > user active), almost no extra semop calls Did Tom's test here: with 2 processes I'll reach 200k+ CS with peaks to 300k CS. Bummer.. Josh, I don't think you can bash the ServerWorks chipset here nor bigmem. Dirk ---------------------------(end of broadcast)--------------------------- TIP 6: Have you searched our list archives? http://archives.postgresql.org ---------------------------(end of broadcast)--------------------------- TIP 2: you can get off all lists at once with the unregister command (send "unregister YourEmailAddressHere" to [EMAIL PROTECTED])