Swap: an idea whose time has come, and gone.
Posted Mar 22, 2007 21:33 UTC (Thu) by cventers
In reply to: Swap: an idea whose time has come, and gone.
Parent article: Toward improved page replacement
To each their own I suppose, but you're just forcing the kernel to evict
page cache more frequently. A lot of the anonymous data you are pinning
will hardly ever be touched, but just think of the program text that has
to be freed and then later re-read as you move from application to
It may behave fine with less processes, but once you start trying to run
more things at once, a system that swaps normally will allow you to, say,
switch between tasks in X faster than your configuration.
Swap isn't there just to extend your available virtual memory. There are
performance reasons to swap out anonymous pages.
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