Still waiting for swap prefetch
Posted Jul 26, 2007 9:37 UTC (Thu) by nix
In reply to: Still waiting for swap prefetch
Parent article: Still waiting for swap prefetch
The page cache is not an `unnecessary but nice performance enhancement'. The text pages of all your binaries are sitting in there while they run, as is all your other mmap()ed stuff. If your page cache was empty you'd not be able to run any userspace code to speak of.
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