Re: Quation about HZ kernel option
- From: Doug Barton <dougb@xxxxxxxxxxx>
- Date: Thu, 4 Oct 2007 16:27:20 -0700 (PDT)
On Wed, 3 Oct 2007, Artem Kuchin wrote:
Hello!
What value of HZ option would you recommend for a hosting (web) server with a lot of processes (about 900) and polling off (as decided from previous discussion polling is useless in this situation).
Is this an SMP system? If so you'd probably be well served by testing the latest 7.0-current (which will soon be a beta for 7.0-release) with the ULE scheduler. That's likely to have more benefit for you than changing HZ, although setting it to 100 is probably going to be better than 1000 for reasons others have already mentioned.
hth,
Doug
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