Messages in this thread |  | | Date | Fri, 8 Jul 2005 15:08:19 -0700 (PDT) | From | Linus Torvalds <> | Subject | Re: [PATCH] i386: Selectable Frequency of the Timer Interrupt |
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On Fri, 8 Jul 2005, Andrew Morton wrote: > > > > The previous value here i386 is 1000 --- so why is the default 250. > > Because 1000 is too high.
Yes. I chose 1000 originally partly as a way to make sure that people that assumed HZ was 100 would get a swift kick in the pants. That meant making a _big_ change, not a small subtle one. For example, people tend to react if "uptime" suddenly says the machine has been up for a hundred days (even if it's really only been up for ten), but if it is off by just a factor of two, it might be overlooked.
So 1kHz was a bit of an overkill, but it worked well enough that we never really got around to changing it.
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