Too Much Context Switching?
kris at FreeBSD.org
Mon Jun 30 19:03:08 UTC 2008
Michel Talon wrote:
> On Mon, Jun 30, 2008 at 07:53:00PM +0200, Kris Kennaway wrote:
>> Yep, it could be that -- what confuses me though is that it is claimed
>> that performance suddenly regressed. If so then this cannot be the
>> underlying cause.
> It may be that the load has augmented to the point that contention
> imposes a rapid regression on throughput.
Yes, it could be that. I don't know off-hand whether multiple threads
are counted separately by vmstat (at a guess I'd say no), but ps/top/etc
should show how many are active in the python process.
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