Messages in this thread | | | Subject | Re: Byte blasts Linux? | Date | Mon, 7 Jun 1999 21:53:22 +0100 (BST) | From | Alan Cox <> |
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> http://www.byte.com/columns/servinglinux/1999/06/0607servinglinux4.html > > In this article they say that Linux has 10% less performance when > operating without swap even if it's not in use. > > The doesn't agree with my expirences.. Any comments?
If you are just pushing into the point where shuffling few pages off is useful then you would see this. If not then you wouldn't. Remember that if you have no swap Linux is still swapping read only pages back off disk and discarding them when you have "no swap".
If you really do see a speed up by adding an unused swap then it will be interesting to verify it and find out why.
The general stuff I'm vaguely dubious about. We are definitely worse than BSD in stupidly overloaded situations, but our mm subsystem doesn't pay the same housekeeping penalties for that case that they do on properly specced boxes.
Alan
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