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From: "Paul D. DeRocco" <pderocco@ix.netcom.com>
To: "'Jussi Kukkonen'" <jku@goto.fi>
Cc: 'Yocto discussion list' <yocto@yoctoproject.org>
Subject: Re: One second timestamp resolution?
Date: Thu, 12 Sep 2019 09:58:45 -0700	[thread overview]
Message-ID: <527EBDD9EA054C6B9C6110D2D49FF1F9@PAULD> (raw)
In-Reply-To: <CAD5=o+ostuMAdfPEwvWzo95woVGdEGVY8Ddyp5paaDhYVzhLGA@mail.gmail.com>

> From: Jussi Kukkonen [mailto:jku@goto.fi] 
> 
> I think file timestamp resolution on ext4 is one of the things that
> depend on inode size (ext4 does not enforce reasonable values because
> of compatibility with earlier versions I guess). So maybe check inode
> size (should be 256 bytes I think?).

I don't have tune2fs on my embedded system, so I can't check, but that sounds like the probable reason. The nanoseconds that ext4 added are in the upper 128 bytes of a 256 byte inode, for compatibility reasons, so somehow I must have ext4 configured to use 128 byte inodes. Where would this be configured in a Yocto build? I'm still on Pyro.

-- 

Ciao,               Paul D. DeRocco
Paul                mailto:pderocco@ix.netcom.com



      reply	other threads:[~2019-09-12 16:58 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-11  5:50 One second timestamp resolution? Paul D. DeRocco
2019-09-12  9:05 ` Jussi Kukkonen
2019-09-12 16:58   ` Paul D. DeRocco [this message]

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