linux-ext4 - Re: [PATCH v2.1 00/50] e2fsprogs: Add metadata checksumming

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Date:	Mon, 28 Nov 2011 23:52:28 -0800
From:	"Darrick J. Wong" <djwong@...ibm.com>
To:	Andreas Dilger <adilger.kernel@...ger.ca>
Cc:	Theodore Tso <tytso@....edu>,
	Sunil Mushran <sunil.mushran@...cle.com>,
	Amir Goldstein <amir73il@...il.com>,
	Andi Kleen <andi@...stfloor.org>,
	Mingming Cao <cmm@...ibm.com>,
	Joel Becker <jlbec@...lplan.org>, linux-ext4@...r.kernel.org,
	Coly Li <colyli@...il.com>
Subject: Re: [PATCH v2.1 00/50] e2fsprogs: Add metadata checksumming

On Mon, Nov 28, 2011 at 10:17:35PM -0700, Andreas Dilger wrote:
> On 2011-11-28, at 5:27 PM, Darrick J. Wong wrote:
> > This patchset adds support in e2fsprogs for attaching crc32c checksums to most of the ext4 metadata objects.  A full design document is on the
> > ext4 wiki[1].  Please see the cover letter for the kernel patches for a
> > more thorough summary of this work.
> > 
> > [1] https://ext4.wiki.kernel.org/index.php/Ext4_Metadata_Checksums
> 
> This URL has changed:
> 
> https://ext4.wiki.kernel.org/articles/e/x/t/Ext4_Metadata_Checksums_4d24.html
> 
> It would also be useful to include in this wiki page the tests you
> did for the checksum speed of different algorithms at different chunk
> sizes, since checksums of 512MB of data are few and far between
> (especially since this is not computing the checksum of file data).

Oh, the wiki's back up... though I guess I can't log in either.  I'll dig up
the results and shove it in the google docs spreadsheet for now, I guess.

--D
> 
> Cheers, Andreas
> 
> 
> 
> 
> 

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