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From: Andy Parkins <andyparkins@gmail.com>
To: git@vger.kernel.org
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
	Robin Rosenberg <robin.rosenberg.lists@dewire.com>,
	"Simon 'corecode' Schubert" <corecode@fs.ei.tum.de>,
	Junio C Hamano <gitster@pobox.com>,
	Jason Sewall <jasonsewall@gmail.com>,
	raa.lkml@gmail.com
Subject: Re: [PATCH] Add a 1-second sleep to git-cvsexportcommit test
Date: Wed, 25 Jul 2007 08:35:19 +0100	[thread overview]
Message-ID: <200707250835.21181.andyparkins@gmail.com> (raw)
In-Reply-To: <alpine.LFD.0.999.0707241144490.3607@woody.linux-foundation.org>

On Tuesday 2007 July 24, Linus Torvalds wrote:

> So if you sleep for one second, the filesystem times will update by one
> second, but if you try to *synchronize* to exactly one second, it's not at
> all certain that the *filesystem* clock will be synchronized to the same
> second! Time skew is simply a fact of life.

I think it's even worse; if memory serves one of the Windows file systems 
(spit) only stores times to a two-second resolution.  So half the time, 
waiting for one second won't change the time stamp _at all_.


Andy
-- 
Dr Andy Parkins, M Eng (hons), MIET
andyparkins@gmail.com

  parent reply	other threads:[~2007-07-25  7:35 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-07-22 19:41 Test #7 in t9200-git-cvsexportcommit fails Jason Sewall
2007-07-22 20:21 ` Alex Riesen
2007-07-22 20:49   ` Jason Sewall
2007-07-22 21:42     ` Alex Riesen
2007-07-22 22:19     ` Junio C Hamano
2007-07-23  3:59       ` [PATCH] Add a 1-second sleep to git-cvsexportcommit test Jason Sewall
2007-07-23  4:32         ` Junio C Hamano
2007-07-23  7:55           ` Simon 'corecode' Schubert
2007-07-24  0:23             ` Robin Rosenberg
2007-07-24  8:11               ` Simon 'corecode' Schubert
2007-07-24  8:33                 ` Robin Rosenberg
2007-07-24  8:38                   ` Simon 'corecode' Schubert
2007-07-24  9:34                     ` Robin Rosenberg
2007-07-24 10:14                       ` Junio C Hamano
2007-07-24 12:57                         ` Robin Rosenberg
2007-07-24 15:31                           ` Jason Sewall
2007-07-24 19:02                       ` Linus Torvalds
2007-07-24 22:56                         ` Robin Rosenberg
2007-07-24 23:19                           ` Linus Torvalds
2007-07-25  7:35                         ` Andy Parkins [this message]
2007-07-25  7:43                           ` Marius Storm-Olsen

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