Messages in this thread | | | Date | Fri, 18 May 2001 20:19:24 +0200 | From | Ingo Oeser <> | Subject | Re: Linux 2.4.4-ac10 |
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On Fri, May 18, 2001 at 07:45:15PM +0200, Mike Galbraith wrote: > Yes, ~exactly! I chose 30 tasks because they almost do (tool/userland > dependant.. must recalibrate often) fit. The bitch is to get the vm > to automagically detect the rss/cache munch tradeoff point without all > the manual help.
What about a sysctl for that? Choose decent steps and let 0 (which is an insane value) mean "let's kernel decide" and make this default.
In the past we could do this by adjusting some watermarks in /proc/sys/vm but now, we can't do anything but trust the genius kernel developers.
I doubt that we can test all kinds of workload and even imagine what pervert stuff some people do with their machines.
Tuning _is_ manual work. Always has been and always will be.
This countinously "I know it better then you" is what I hated about Windows and now this comes more and more into Linux :-(
Rik: Would you take patches for such a tradeoff sysctl?
Regards
Ingo Oeser -- To the systems programmer, users and applications serve only to provide a test load. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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