Messages in this thread |  | | Date | Fri, 19 Jan 2001 03:08:25 +0100 | From | Andi Kleen <> | Subject | Re: 2.4.1pre8 slowdown on dbench tests |
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On Fri, Jan 19, 2001 at 02:47:45AM +0100, Jens Axboe wrote: > On Fri, Jan 19 2001, Andi Kleen wrote: > > > Yes I agree, that values should probably be tweaked a bit. I'll > > > try and squeeze some testing in to generate the best possible > > > values. > > > > Please also add a sysctl. I always feel uncomfortable with such hardcoded > > heuristics. There tends to be always another workload where the heuristic > > fails and manual tuning is useful. > > Sure, we can do that. But it should only really make a difference > for low memory machines, otherwise the numbers wouldn't change > so much. So the limits are not really that important, and only > need to be in the ball park.
Shouldn't it more depend on the bandwidth/latency of the IO device?
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