Date: Tue, 9 Jan 1996 14:43:04 -0500 (EST) From: "Ron G. Minnich" <rminnich@Sarnoff.COM> To: Jaye Mathisen <mrcpu@cdsnet.net> Cc: John Beukema <john@gateway.net.hk>, hackers@freebsd.org Subject: mmap issue with vm/file system Message-ID: <Pine.SUN.3.91.960109143555.16523A-100000@terra> In-Reply-To: <Pine.BSF.3.91.960109091944.5504O-100000@schizo.cdsnet.net>
next in thread | previous in thread | raw e-mail | index | archive | help
As things stand now, in 2.1, you can't mmap a file and assume that you'll get the same results from a series of loads/stores as from a series of reads/writes. The vm and file system integration is still not there, although I understand john dyson and co. are working very hard on getting it done. But once it does work the release number will be > 2.1. That's not to say that you can't use shared mapped files for some uses, it's just that you can't expect it to be integrated correctly with file I/O. freebsd is not alone in this: xxxbsd doesn't do it yet, and from my several tries at it linux doesn't get it right either. Ron Minnich |Like a knife through Daddy's heart: rminnich@sarnoff.com |"Don't make fun of Windows, daddy! It takes care (609)-734-3120 | of all my files and it's reliable and I like it".
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?Pine.SUN.3.91.960109143555.16523A-100000>