Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!rice!sun-spots-request From: messy!mo@bellcore.bellcore.com (Michael O'Dell) Newsgroups: comp.sys.sun Subject: Re: buffer cache size Keywords: Miscellaneous Message-ID: <7427@brazos.Rice.edu> Date: 6 May 90 12:55:41 GMT Sender: root@rice.edu Organization: Sun-Spots Lines: 9 Approved: Sun-Spots@rice.edu X-Refs: Original: v9n150 X-Sun-Spots-Digest: Volume 9, Issue 150, message 15 Largely speaking, if you are running 4.0 or later on your server, there ain't no buffer cache, per se, any more!! All of memory is simply a cache for everything in virtual space, including files being vended by NFS. In 4.0, buf headers are still used for outstanding I/O requests, but after the I/O is done, the pages are in the general virtual memory cache. SO, there is no knob to turn... -Mike