Date: Mon, 18 Jun 2007 09:44:36 -0700 From: John Polstra <jdp@polstra.com> To: Xin LI <delphij@delphij.net> Cc: freebsd-fs@FreeBSD.org, freebsd-current@FreeBSD.org Subject: Re: Why vfs.timestamp_precision is set to 0 by default? Message-ID: <4676B674.4030104@polstra.com> In-Reply-To: <46769B76.60502@delphij.net> References: <46769B76.60502@delphij.net>
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Xin LI wrote: > Recently while I'm looking into the VFS code I found that we set > vfs.timestamp_precision to 0 by default. Is there any reason not to set > this to, for instance 1 by default? My rough test indicates that the > performance affect is almost negligible... If I remember correctly, I set the default to 0 for compatibility -- i.e., so that the fractional seconds would continue to be set to 0 as before. That was probably too conservative. John
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