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(parent: a5ab28f) | patch
Add a second hand to the clock algorithm. The front hand clears the
authorKirk McKusick <mckusick@ucbvax.Berkeley.EDU>
Fri, 8 Mar 1985 10:38:54 +0000 (02:38 -0800)
committerKirk McKusick <mckusick@ucbvax.Berkeley.EDU>
Fri, 8 Mar 1985 10:38:54 +0000 (02:38 -0800)
commit00c2438241750769b9da9c896e4f99c662035b7c
treebac3173b8a4a86ec05e66aca7475f68f4dbf4f6atree
parenta5ab28fab7d977eaeeca1c6dbf04e68511346173commit | diff
Add a second hand to the clock algorithm. The front hand clears the
reference bit, the back hand frees pages that are still unreferenced.

SCCS-vsn: sys/vax/include/vmparam.h 6.4
usr/src/sys/vax/include/vmparam.h diff | blob | blame | history
Continuous source code history from original PDP-7 UNIX to FreeBSD 2, the first fully unencumbered FreeBSD release.