Messages in this thread | | | From | Daniel Phillips <> | Subject | Re: swapping,any updates ?? Just wasted money on mem upgrade performance still suck :-( | Date | Mon, 7 Jan 2002 17:38:33 +0100 |
| |
On January 7, 2002 05:06 pm, Alan Cox wrote: > > knobs. It just won't happen. Fixing VM behavior is the only way. It has > > to work satisfactorily _without_ tuning. > > Thats something you will never achieve. Virtual memory is about heuristics, > crystal ball gazing and guesswork. There are always some workloads where you > want little caching and some where you want lots of caching - such as a > fileserver.
You can get close though. The fact that we aren't close is no proof of impossibility. If we do give up and decide to ship only 'manual transmissions', we can be quite sure we'll never get there.
> You can make it right for most people but the last few percent you > will always get by tuning knobs - either directly or via GUI tools like > powertweak
Except, as you and others have pointed out, we are far from knowing what the knobs should be.
-- Daniel - 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/
| |