jeremy@bbird4.prime.com (Jeremy Nussbaum) (05/05/90)
We would like to enlarge the buffer cache on a few heavily used nfs servers. 1. How do we do it? ( I don't see any configuration parameters for it, unlike system V.) 2. If we can, what is a good starting place for a system with 2gb of disk and 32 mb of memory, whose main purpose in life is to have people read and write to the servers nfs mounted disk on their own machines? Jeremy Nussbaum (jeremy@jeremy.prime.com, ...!harvard!primerd!jeremy!jeremy) Prime Computer (508)879-2960 x3516
mo@bellcore.bellcore.com (Michael O'Dell) (05/06/90)
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