From: "Jeff Chua" <jeff.chua.linux@gmail.com>
To: "Andi Kleen" <andi@firstfloor.org>
Cc: lkml <linux-kernel@vger.kernel.org>,
"Arjan van de Ven" <arjan@infradead.org>,
"Miquel van Smoorenburg" <miquels@cistron.nl>,
"Linus Torvalds" <torvalds@osdl.org>
Subject: Re: [PATCH] nanosecond filesystem support???
Date: Tue, 13 Feb 2007 17:09:46 +0800 [thread overview]
Message-ID: <b6a2187b0702130109n16cea6a1oae5761707c17e10f@mail.gmail.com> (raw)
In-Reply-To: <200702130952.26048.andi@firstfloor.org>
On 2/13/07, Arjan van de Ven <arjan@infradead.org> wrote:
> it was there to avoid the following situation:
> on disk it's still in seconds
On 2/13/07, Andi Kleen <andi@firstfloor.org> wrote:
> If you want ns resolution you need a file system that supports it:
> that's currently XFS, JFS, NTFS/CIFS (resolution is lower, but < 1s), NFSv[34], UDF,
> with suitable servers, tmpfs/ramfs/hugetlbfs. ext4 ns support is being worked on,
>
> BTW the real max resolution supported in the kernel right now is jiffies.
Andy, Arjan,
Ok, I got it now. Well, after reboot, I ran stat() and since the info
has to come from disk, now the nanosec returned is zero!
Thanks for all your help.
Jeff.
prev parent reply other threads:[~2007-02-13 9:10 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-02-13 8:38 Jeff Chua
2007-02-13 8:42 ` Arjan van de Ven
2007-02-13 8:52 ` Andi Kleen
2007-02-13 9:09 ` Jeff Chua [this message]
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