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Even though the writes are cached, it's still eventually putting bytes on the disk. For a cvs server, which is focused on accessing the disk, trying to access 2 different sections of the drive is much more time consuming. With my typical repositories exceeding 20,000 active files (35,000 total files), that's a lot of access. Even with defragmentation, any given repository is scattered all over the disk, and the temp space is fragmented no matter you do unless you dedicate a drive to it. A ram disk is the most efficient version of a drive. Furthermore, I have empirical test results showing up to 150% performance increase when using a ram disk 4 years ago. However, CVS has changed since then as well as OS's, so I was just wondering whether the ram vs tmp space tradeoff has changed. I noticed CvsNT sucking up large tracts of RAM that I never saw happen with CVS, and it make me think that more of the temp stuff may be stored in memory than disk now. chuck -----Original Message----- From: cvsnt-bounces at cvsnt.org [mailto:cvsnt-bounces at cvsnt.org] On Behalf Of Tony Hoyle Sent: Wednesday, August 11, 2004 11:29 AM To: cvsnt at cvsnt.org Subject: [cvsnt] Re: ram disk? On Wed, 11 Aug 2004 11:20:00 -0400, "Chuck Kirschman" <Chuck.Kirschman at bentley.com> wrote: > >On our Linux servers (800 MHz, 2Gb Ram, Raid 5 SCSI drives), we used >ram disks for the CVS temp space to dramatically improve performance. >This was years ago, when the fastest boxes were 800 MHz, but we were >able to take them up to 2 Gb Ram and use a 1.5 Gb ram disk. We're >currently moving to Windows Server 2003 and CvsNT on these same >servers, and I'm wondering how CvsNT uses memory vs temp space? I'd >like to know if a ram disk is a good idea, or does CvsNT strongly >prefer more memory and make less use of the temp space? > On modern operating systems (including Linux) ram disks are completely pointless, as filesystem access is cached in spare RAM anyway. You may even slow your machine down as you're forcing it into swap early. Tony _______________________________________________ cvsnt mailing list cvsnt at cvsnt.org http://www.cvsnt.org/cgi-bin/mailman/listinfo/cvsnt cvsnt downloads at march-hare.com https://www.march-hare.com/cvspro/en.asp#downcvs @CVSNT on Twitter CVSNT on Facebook