Messages in this thread | | | From | Daniel Phillips <> | Subject | Re: 2.4.19pre2aa1 | Date | Thu, 7 Mar 2002 12:46:39 +0100 |
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On March 7, 2002 12:47 pm, William Lee Irwin III wrote: > On March 7, 2002 11:49 am, William Lee Irwin III wrote: > >> 4096 threads blocked on I/O is already approaching or exceeding the > >> scalability limits of other core kernel subsystems. > > On Thu, Mar 07, 2002 at 12:27:41PM +0100, Daniel Phillips wrote: > > I think he meant that with larger ram it's easy to justify making the wait > > table a little looser, to gain a tiny little bit of extra performance. > > That seems perfectly reasonable to me. Oh, and there's also the observation > > that machines with larger ram tend to be more heavily loaded with processes, > > just because one can. > > And these processes will not be waiting on pages as often, either, as > pages will be more plentiful. > > From the reports I've seen, typical numbers of waiters on pages, even > on large systems, are as much as an order of magnitude fewer in number > than 4096. It would seem applications need to wait on pages less with > the increased memory size.
Uh Yup.
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