Date: Fri, 10 Feb 2012 17:23:42 +0100 From: Gary Jennejohn <gljennjohn@googlemail.com> To: Ed Schouten <ed@80386.nl> Cc: fs@freebsd.org Subject: Re: Increase timestamp precision? Message-ID: <20120210172342.7974cc32@ernst.jennejohn.org> In-Reply-To: <20120210135527.GR1860@hoeg.nl> References: <20120210135527.GR1860@hoeg.nl>
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On Fri, 10 Feb 2012 14:55:27 +0100 Ed Schouten <ed@80386.nl> wrote: > It seems the default timestamp precision sysctl > (vfs.timestamp_precision) is currently set to 0 by default, meaning we > don't do any sub-second timestamps on files. Looking at the code, it > seems that vfs.timestamp_precision=1 will let it use a cached value with > 1 / HZ precision and it looks like it should have little overhead. > > Would anyone object if I were to change the default from 0 to 1? > Is this only visible in the kernel? I don't see any difference in the output of ls -lT whether the sysctl is set to 0 or 1. -- Gary Jennejohn
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