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Home -> Community -> Usenet -> c.d.o.server -> Re: 7.3.3 NT 4.0 Page faults = bad??
joe gulla wrote in message <36CDC5B2.FD7C5BB7_at_erols.com>...
> Page faulting is a mechanism for sharing memory resources. Your virtual
>memory alocation is larger than actual amount of physical memory you/your
>job/your context have at any one time. hard faults mean your codes is in
>the page file otherwise its in physical memory. Faults are not a bad thing
> Joe
I don't suggest that. In fact they rarely cause waiting because of disk access
if page file is cached. That's one of the reasons of agresive file caching
in NT.
However page faults consume some CPU in kernel mode. On the other hand,
FIFO has usually much simplier and faster implementation than LRU which
consumes CPU to maintain its counters.
--
Piotr Kolodziej pkol_at_otago.gda.pl
Just my private opinion.
=
Received on Mon Feb 22 1999 - 07:46:18 CST
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