Aw: Re: Aw: Re: Setting mtime doesn't work after copying a file with mmap

[Carsten Kunze <carsten.kunze%arcor.de@localhost>]

christos%astron.com@localhost (Christos Zoulas) wrote:

> How often should it be updated?

Only once on munmap?  If it is updated at an unpredictable time it makes something like utime(2) senseless (since it is changed anyway).  Always use msync is a performance issue for e.g. "cp -p ..." (so I think cp(1) doesn't use mmap for copying).

If the current behaviour is 4.4BSD derived it is ok, but if it's "only" NetBSD specific it is maybe not optimal.

Carsten