Date: Fri, 16 Jul 1999 08:50:18 +0100 From: Dominic Mitchell <Dom.Mitchell@palmerharvey.co.uk> To: Matthew Dillon <dillon@apollo.backplane.com> Cc: "Daniel C. Sobral" <dcs@newsguy.com>, freebsd-hackers@FreeBSD.ORG, tech-kern@netbsd.org Subject: Re: Swap overcommit (was Re: Replacement for grep(1) (part 2)) Message-ID: <19990716085017.B48601@palmerharvey.co.uk> In-Reply-To: <199907160457.VAA15580@apollo.backplane.com>; from Matthew Dillon on Thu, Jul 15, 1999 at 09:57:31PM -0700 References: <19866.932086145@splode.eterna.com.au> <378EB49D.331D46DA@newsguy.com> <199907160457.VAA15580@apollo.backplane.com>
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On Thu, Jul 15, 1999 at 09:57:31PM -0700, Matthew Dillon wrote: > Something is weird here. If the solaris people are using a > SWAPSIZE + REALMEM VM model, they have to allow the > allocated + reserved space go +REALMEM bytes over available swap > space. If not they are using only a SWAPSIZE VM model. > > Wait - does Solaris normally use swap files or swap partitions? > Or is it that weird /tmp filesystem stuff? If it normally uses swap > files and allows holes then that explains everything. No, swap is slice based in Solaris. tmpfs is just a filesystem (much like MFS) which uses swap as backing store. I will admit to never quite understanding the relationship of how much swap tmpfs is willing to steal though... Maybe I should go and read the answerbook (http://docs.sun.com if you want a peek). -- Dom Mitchell -- Palmer & Harvey McLane -- Unix Systems Administrator In Mountain View did Larry Wall Sedately launch a quiet plea: That DOS, the ancient system, shall On boxes pleasureless to all Run Perl though lack they C. -- ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been swept by MIMEsweeper for the presence of computer viruses. ********************************************************************** To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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