default HZ value in 5.2.1

Kirk Strauser kirk at strauser.com
Fri Jul 9 11:51:17 PDT 2004


On Friday 2004-07-09 01:06 pm, Bernd Walter wrote:

> As long as I can remember alphas default to > 1000.  E.g. some are doing
> 1200 and other 1024 depending on the platform.  AFAIK there are reasons
> not be exactly 1000.  Why do you need 1000 instead of the system default?  

I didn't and still don't, but didn't know that at the time I configured my 
system that way.  I was following some of the (x86-centric) instructions 
for polling my fxp NICs and noticed a tremendous performance degradation, 
and that's when I learned that setting HZ=1000 on my particular Alpha is a 
Bad Thing.
-- 
Kirk Strauser


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