Messages in this thread | | | Subject | Re: 2.4.17 absurd number of context switches | Date | Fri, 28 Dec 2001 17:02:09 +0000 (GMT) | From | Alan Cox <> |
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> Check out those figures for context switches! 30,000 switches per second > with only three runnable processes and practically no block I/O seems > quite high to me. You can also see that the system is spending half its .. > Is this a scheduler worst-case, something to be expected, or something I > can work around?
The scheduler is _good_ at the three process case. Run some straces it looks more like postgres is doing wacky yield based locks.
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