Messages in this thread | | | From | "Peter T. Breuer" <> | Subject | Re: Overcommitable memory?? | Date | Thu, 16 Mar 2000 00:35:22 +0100 (MET) |
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"A month of sundays ago Rask Ingemann Lambertsen wrote:" [Charset iso-8859-1 unsupported, filtering to ASCII...] > > Of course, if you don't have a swap-file, there is nothing you can > > do. Some persons claim that a swap-file isn't necessary and should not > > be used. They come from the "Flat Earth Society". > > Swap isn't necessary. Swap is just a cheap and slow alternative to RAM > chips, that's why most people use it, hoping mostly inactive parts of > memory have to be implemented as swap, but swap isn't necessary. It is > quite possible to run production Linux systems without any swap. Been > there, done that.
Interestingly, I have to reluctlantly accede. Performance is noticably better on my workstation without swap.
total used free shared buffers cached Mem: 128000 124072 3928 20956 50004 43512 -/+ buffers/cache: 30556 97444 Swap: 258008 14192 243816
Look .. it has 90MB free ram available and it chooses to swap out unused pages. This is great .. until I have to swap them back in again at ~ 1MB/s. I need those pages infrequently, but more frequently than I need fresh ram. They're typically something like unused X fonts.
Not complaining, btw. Just observing. The setup is my decision.
Peter
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