Swap: an idea whose time has come, and gone.

Swap: an idea whose time has come, and gone.

Posted Mar 22, 2007 21:33 UTC (Thu) by cventers (subscriber, #31465)
In reply to: Swap: an idea whose time has come, and gone. by zooko
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
application!

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.

---

(Log in to post comments)