From: Alex Zhuravlev <Alex.Zhuravlev@Sun.COM>
To: lustre-devel@lists.lustre.org
Subject: [Lustre-devel] storing SOM epoch in EA
Date: Tue, 19 Feb 2008 18:19:12 +0300 [thread overview]
Message-ID: <47BAF370.7030804@sun.com> (raw)
In-Reply-To: <47BAF252.9050409@sun.com>
Yuriy Umanets wrote:
> I did not mean to put whole inode in IAM. I meant only put there fid as
> key and epoch as value. So way to access epoch is shorter with IAM as no
> need to load inode. But these all need to be well thought as all your
> mention more seeks, new reads, etc.
I don't understand benefits of this approach. the idea is to pack frequently
accessed data together so that we don't need additional seeks and load/store
these data with a single contiguous IO.
thanks, Alex
next prev parent reply other threads:[~2008-02-19 15:19 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-19 9:48 [Lustre-devel] storing SOM epoch in EA Alex Zhuravlev
2008-02-19 10:28 ` Yuriy Umanets
2008-02-19 10:30 ` Alex Zhuravlev
2008-02-19 10:38 ` Yuriy Umanets
2008-02-19 10:59 ` Vitaly Fertman
2008-02-19 11:11 ` Yuriy Umanets
2008-02-19 11:18 ` Alex Zhuravlev
2008-02-19 12:02 ` Yuriy Umanets
2008-02-19 12:09 ` Alex Zhuravlev
2008-02-19 14:28 ` Yuriy Umanets
2008-02-19 14:47 ` Alex Zhuravlev
2008-02-19 15:10 ` Yuriy Umanets
2008-02-19 12:13 ` Alex Zhuravlev
2008-02-19 14:30 ` Yuriy Umanets
2008-02-19 14:36 ` Nikita Danilov
2008-02-19 14:44 ` Yuriy Umanets
2008-02-19 14:39 ` Yuriy Umanets
2008-02-19 14:42 ` Alex Zhuravlev
2008-02-19 20:13 ` Andreas Dilger
2008-02-19 14:59 ` Mikhail Pershin
2008-02-19 15:11 ` Kalpak Shah
2008-02-19 15:23 ` Ricardo M. Correia
2008-02-19 15:14 ` Yuriy Umanets
2008-02-19 15:19 ` Alex Zhuravlev [this message]
2008-02-19 15:28 ` Vitaly Fertman
2008-02-19 15:18 ` Ricardo M. Correia
2008-02-19 16:21 ` Nikita Danilov
2008-02-19 16:27 ` Alex Zhuravlev
2008-02-20 16:10 ` Nikita Danilov
2008-02-19 15:31 ` Eric Barton
2008-02-19 15:42 ` Alex Zhuravlev
2008-02-19 20:19 ` Andreas Dilger
2008-02-19 20:33 ` [Lustre-devel] on-disk SOM attributes [former storing SOM epoch in EA] Vitaly Fertman
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