From owner-freebsd-current Fri Sep 17 16:14:47 1999 Delivered-To: freebsd-current@freebsd.org Received: from proxy2.ba.best.com (proxy2.ba.best.com [206.184.139.14]) by hub.freebsd.org (Postfix) with ESMTP id 703C41593E for ; Fri, 17 Sep 1999 16:14:42 -0700 (PDT) (envelope-from dillon@apollo.backplane.com) Received: from apollo.backplane.com ([209.157.86.2]) by proxy2.ba.best.com (8.9.3/8.9.2/best.out) with ESMTP id QAA04256 for ; Fri, 17 Sep 1999 16:12:34 -0700 (PDT) Received: (from dillon@localhost) by apollo.backplane.com (8.9.3/8.9.1) id IAA53266; Fri, 17 Sep 1999 08:22:54 -0700 (PDT) (envelope-from dillon) Date: Fri, 17 Sep 1999 08:22:54 -0700 (PDT) From: Matthew Dillon Message-Id: <199909171522.IAA53266@apollo.backplane.com> To: Don Lewis Cc: Brad Knowles , freebsd-current@FreeBSD.ORG Subject: Re: More benchmarking stuff... References: <199909171402.HAA23902@salsa.gv.tsc.tdk.com> Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG :Also FreeBSD only caches a limited number of directory blocks. This :was discussed on -hackers in April. Search for the subject "Directories :not VMIO cached at all!". Matt Dillon posted a patch to to better :cache directories (at the possible expense of wasted RAM and which breaks :NFS) in Message-ID <199904171844.LAA75452@apollo.backplane.com>. That's been committed, but you have to turn it on with a sysctl because softupdates occassionally barfs with it on. It seems unlikely to me that it will effect the benchmark unless the benchmark creates a whole lot of directories. sysctl -w vfs.vmiodirenable=1 The NFSv3 performance elements have also been committed. I'm going to try running this benchmark thingy on my test boxes as soon as I can get my cvs tree updated. -Matt Matthew Dillon To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message