On Apr 19, 2004, at 8:01 PM, Tom Lane wrote:
[test case]
Quad P3-700Mhz, ServerWorks, pg 7.4.2 - 1 process: 10-30 cs / second
2 process: 100k cs / sec
3 process: 140k cs / sec
8 process: 115k cs / sec
Dual P2-450Mhz, non-serverworks (piix) - 1 process 15-20 / sec
2 process 30k / sec
3 (up to 7) process: 15k /sec
(Yes, I verified with more processes the cs's drop)
And finally,
6 cpu sun e4500, solaris 2.6, pg 7.4.2: 1 - 10 processes: hovered
between 2-3k cs/second (there was other stuff running on the machine as
well)
Verrry interesting.
I've got a dual G4 at home, but for convenience Apple doesn't ship a
vmstat that tells context switches
--
Jeff Trout <jeff@jefftrout.com>
http://www.jefftrout.com/
http://www.stuarthamm.net/