Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!swrinde!elroy.jpl.nasa.gov!decwrl!uunet!convex!thurlow From: thurlow@convex.com (Robert Thurlow) Newsgroups: comp.protocols.nfs Subject: Re: NFS performance Message-ID: Date: 14 Jun 91 12:47:35 GMT References: <1388@appli.se> <623@appserv.Eng.Sun.COM> <1991Jun13.164017.29944@Firewall.Nielsen.Com> Sender: usenet@convex.com (news access account) Organization: CONVEX Computer Corporation, Richardson, Tx., USA Lines: 15 Nntp-Posting-Host: dhostwo.convex.com In <1991Jun13.164017.29944@Firewall.Nielsen.Com> kdenning@genesis.Naitc.Com (Karl Denninger) writes: >Why wasn't [O_SYNC] designed into NFS? Um, we picked this up from the NFSSRC 4.0 release. Pages get written to the buffer cache so they can be read next time, but your write(2) blocks until all I/O is completed on those pages. If Sun has it, and Sun licensees have it, in what sense is more needed? If your vendor doesn't do this, and does have a buffer cache and biods, just ask them for the option. Rob T -- Rob Thurlow, thurlow@convex.com An employee and not a spokesman for Convex Computer Corp., Dallas, TX