Quation about HZ kernel option

[Doug Barton]

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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