Date: Sat, 24 Feb 2001 23:53:04 -0500 (EST) From: David Gilbert <dgilbert@velocet.ca> To: Bernd Walter <ticso@cicely5.cicely.de> Cc: David Gilbert <dgilbert@velocet.ca>, freebsd-hackers@FreeBSD.ORG Subject: Re: Large MFS on NFS-swap? Message-ID: <15000.36784.766360.340198@trooper.velocet.net> In-Reply-To: <20010225042933.A508@cicely5.cicely.de> References: <15000.8884.6165.759008@trooper.velocet.net> <20010225042933.A508@cicely5.cicely.de>
next in thread | previous in thread | raw e-mail | index | archive | help
>>>>> "Bernd" == Bernd Walter <ticso@cicely5.cicely.de> writes: Bernd> You have to raise MAXDSIZE and DFLDSIZ in your kernel config. Bernd> You may also want to try MD instead of MFS. Well... I was reading about md and the man page seemed to imply that it was _very_ dependant on what malloc(9) could do ... and it hinted (or it may be me drawing this conclusion) that md was limited to the size of pysical memory. In this particular case, 99% of the time, the program is writing files that fit into memory. 1% of the time, it writes huge files ... and I'm aware that the mfs filesystem is probably going to perform worse when you write to MFS and then swap ... ... but over all, the other 99% of the time should be a _big_ win. Dave. -- ============================================================================ |David Gilbert, Velocet Communications. | Two things can only be | |Mail: dgilbert@velocet.net | equal if and only if they | |http://www.velocet.net/~dgilbert | are precisely opposite. | =========================================================GLO================ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?15000.36784.766360.340198>