Kernal Trap reports on a Linux kernel patch that implements an
"Andreas Gruenbacher posted a patch to lkml that would allow for "dynamically sized caches that shrink under pressure" (caches that shrink when available physical memory is low). This feature seems a bit controversial, since the traditional approach has always been to cache as much as possible, and to swapout under pressure. The rationale is that you want to have as much cache in RAM, to reduce disk access."
(Submitted by Noel Mon Aug 12, 2002 )
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