I found this page that gives pretty good explanations of the subject. Makes me want to recompile and try 1000Hz. I did a google search for "variable Hz redhat" and it listed a few other good pages.
http://kerneltrap.org/node.php?id=464 Robert On Saturday 28 June 2003 00:31, Joeb wrote: > On Fri, 27 Jun 2003 16:51:28 -0400 > Robert Crawford <[EMAIL PROTECTED]> wrote: > <snip> > > > I'd really > > be interested in learning about RedHat's thinking on this subject- can > > you point us to where you learned about this? I'm all for doing anything > > to increase performance. > > That's my problem, I can't remember where I found it on the web! I know it > was back during the 8.0 days of Mandrake. I recall a post, that I thought > was on one of the Mandrake lists, but I sure can't find it. The post > pointed to an article about increasing the HZ size and how it improved > response times for desktop users. It also stated that Redhat was doing > this with their kernels, which is why their i386 seemed so snappy compared > to Mandrake and Suse. The downside was something about timings being off > for some tools because the items in /proc weren't aware that the HZ had > been changed. It was my understanding with Redhat 9, they continued this > practice of changing the HZ but also modified the tools that calculate the > various things in /proc. > > I'm sorry I don't have more information, but I have long since given up > finding the original article. It seems Google wants to return 50,000+ hits > everytime I try and after a few hundred, I give up. > > If I ever find my hard copy, I'll type it back in to the list. > > Joeb > > p.s. It's also my understanding that the 2.5/2.6 kernel has increased this > setting.
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