Messages in this thread | | | From | "Chen, Kenneth W" <> | Subject | RE: Default cache_hot_time value back to 10ms | Date | Wed, 6 Oct 2004 12:27:44 -0700 |
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Andrew Morton wrote on Tuesday, October 05, 2004 9:51 PM > > Nick Piggin <nickpiggin@yahoo.com.au> wrote: > > I'd say it is probably too low level to be a useful tunable (although > > for testing I guess so... but then you could have *lots* of parameters > > tunable). > > This tunable caused an 11% performance difference in (I assume) TPCx. > That's a big deal, and people will want to diddle it. > > If one number works optimally for all machines and workloads then fine. > > But yes, avoiding a tunable would be nice, but we need a tunable to work > out whether we can avoid making it tunable ;) > > Not that I'm soliciting patches or anything. I'll duck this one for now.
Andrew, can I safely interpret this response as you are OK with having cache_hot_time set to 10 ms for now? And you will merge this change for 2.6.9? I think Ingo and Nick are both OK with that change as well. Thanks.
- Ken
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