Messages in this thread | | | Date | Mon, 14 Apr 2003 22:30:52 -0700 | From | "H. Peter Anvin" <> | Subject | Re: Memory mapped files question |
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Jamie Lokier wrote: > > It's a quality of implementation issue if data can remain dirty in RAM > forever without ever being flushed. > > Can this really happen with normal open/mmap/munmap/close usage, or > does it only occur with long-lived processes like innd which mmap a > file, dirty the pages but never munmap them? > > If the former case does happen, I'd say we're failing on quality of > implementation. If it's only the latter case, though, fair enough: the > application writer will have to use msync(). >
The latter, I'm pretty sure. After all, that's what pgflush/bdflush is all about.
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