Date: Fri, 22 Jun 2001 21:40:11 -0400 From: Bill Moran <wmoran@iowna.com> To: Joe Clarke <marcus@marcuscom.com> Cc: Jacob <jacob@essociate.com>, freebsd-questions@FreeBSD.ORG Subject: Re: 2G RAM: how much swap space? Message-ID: <3B33F37B.FCF2C997@iowna.com> References: <20010622204809.W92463-100000@shumai.marcuscom.com>
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One thing to remember on this: If you ever have to debug a problematic kernel, you will need at least as much swap as you have RAM in order to do a crash dump. Considering how cheap HDD space is, I'd stick with the 2X rule, but I wouldn't drop below 1X if I were me. If you do so, you're basically in the dark if your kernel starts having trouble. -Bill Joe Clarke wrote: > > Today, the old 2xRAM rule isn't really as important. Especially when you > consider the applications you're going to be running. If a database ever > has to swap, forget about it. Your performance will take a steep dive. > You'll probably be safest with 2 GB of swap, but that may be excessive. > If you're going to be doing kernel crash debugging on this machine, up the > swap space. If it's just going to be a database-driven web server, opt > for 1xRAM of swap maximum, and through in as much memory as you can. > > Joe Clarke > > On Fri, 22 Jun 2001, Jacob wrote: > > > > > Fellow Daemonheads, > > > > What is the recommended partitioning scheme with regard to swap space > > for a web server (2 1-GHz PIII; *2G RAM*; 2 9G SCSI drives). Principle > > apps that the server will be running are Apache/mod_perl & MySQL. > > > > The defaults given by the FreeBSD install are 4099M swap on each > > drive, and this seems excessive considering half the disk space would > > be used for swap. > > > > TIA for tips/insight. > > > > -- > > Hacking's just another word for nothing left to kludge. > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > > with "unsubscribe freebsd-questions" in the body of the message > > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-questions" in the body of the message -- If a bird in the hand is worth two in the bush, then what can I get for two hands in the bush? To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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