Date: Sat, 10 Feb 2001 13:11:05 +1100 (EST) From: Bruce Evans <bde@zeta.org.au> To: Andrew Gallatin <gallatin@cs.duke.edu> Cc: Julian Elischer <julian@elischer.org>, freebsd-emulation@FreeBSD.ORG Subject: Re: What's changed recently with vmware/linuxemu/file I/O Message-ID: <Pine.BSF.4.21.0102101303001.20995-100000@besplex.bde.org> In-Reply-To: <14980.8856.555504.633075@grasshopper.cs.duke.edu>
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On Fri, 9 Feb 2001, Andrew Gallatin wrote: > Julian Elischer writes: > > > > I don't like the sound of that hack.. > > are they doing something in Linux to tell Linux to not sync it? > > Linux apparently only syncs mmap'ed files when they are closed (or > when it is under memory pressure). Eg, linux treats every mmap'ed file > as MAP_NOSYNC. This may be just because the default mount option under linux is equivalent to -async under FreeBSD. Mmapped files shouldn't be synced differently than ordinary files unless an mmap option specifies it. Bruce To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-emulation" in the body of the message
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