Date: Thu, 2 Aug 2007 20:28:18 +0200 (CEST) From: Oliver Fromme <olli@lurza.secnetix.de> To: freebsd-chat@FreeBSD.ORG, netslists@gmail.com Subject: Re: TMPFS, is it available on FreeBSD 6 or 7? Message-ID: <200708021828.l72ISIng041845@lurza.secnetix.de> In-Reply-To: <46B1FEF0.5050501@gmail.com>
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Sten Daniel Soersdal wrote: > Is TMPFS available on FreeBSD 6 or 7? > Or do i have to settle for mfs? > > [venting frustration] > The reason i ask is i need something very flexible when it comes to > memory usage as a poor-mans shared-memory feature for a closed source > data conversion app, used only occasionally but with *alot* of data > passing through. By alot i mean it took our quad core xeon 3 ghz with > 4 gbyte memory and 4 SAS drives in 1+0 RAID, about a day and a half to > process (on disk). > Simple tests (by others) using netbsd on a single cpu 3 ghz and tmpfs, > it took roughly 70 minutes. Most of which was spent loading and > unloading the data over the network. > I'd really like that memory back after use for other things as this > server is also serving databases with files etc. If you only need it occasionally, but not permanently, then why don't you simply mount an MD filesystem on some non-standard name (i.e. not /tmp) and use it, and when you're done you simply umount it. You get all memory back then. Best regards Oliver -- Oliver Fromme, secnetix GmbH & Co. KG, Marktplatz 29, 85567 Grafing b. M. Handelsregister: Registergericht Muenchen, HRA 74606, Geschäftsfuehrung: secnetix Verwaltungsgesellsch. mbH, Handelsregister: Registergericht Mün- chen, HRB 125758, Geschäftsführer: Maik Bachmann, Olaf Erb, Ralf Gebhart FreeBSD-Dienstleistungen, -Produkte und mehr: http://www.secnetix.de/bsd "The scanf() function is a large and complex beast that often does something almost but not quite entirely unlike what you desired." -- Chris Torek
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