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From: Mingming Cao <cmm@us.ibm.com>
To: ext2-devel <ext2-devel@lists.sourceforge.net>,
	Andrew Morton <akpm@osdl.org>,
	"Stephen C. Tweedie" <sct@redhat.com>,
	linux-kernel <linux-kernel@vger.kernel.org>,
	linux-fsdevel@vger.kernel.org
Cc: Badari Pulavarty <pbadari@us.ibm.com>,
	suparna@in.ibm.com, tytso@mit.edu, alex@clusterfs.com,
	adilger@clusterfs.com
Subject: [RFC] [PATCH 0/4]Multiple block allocation and delayed allocation for ext3
Date: Sun, 17 Jul 2005 10:40:02 -0700	[thread overview]
Message-ID: <1121622002.4609.23.camel@localhost.localdomain> (raw)
In-Reply-To: <1110839154.24286.302.camel@dyn318077bld.beaverton.ibm.com>

Hi All, 

Here are the updated patches to support multiple block allocation and
delayed allocation for ext3 done by me, Badari and Suparna.

[PATCH 1/4] -- multiple block allocation for current ext3.
(ext3_get_blocks()).

[PATCH 2/4] -- adding delayed allocation for writeback mode

[PATCH 3/4] -- generic support for cluster pages together in
mapge_writepages() to make use of getblocks() 

[PATCH 4/4] -- support multiple block allocation for ext3 writeback mode
through writepages(). 


Have done initial testing on dbench and tiobench on a 2.6.11 version of
this patch set. Dbench 8 thread throughput result is increased by 20%
with this patch set.

dbench comparison: (ext3-dm represents ext3+thispatchset)
http://www.sudhaa.com/~ram/ols2005presentation/dbench.jpg
tiobench comparison:
http://www.sudhaa.com/~ram/ols2005presentation/tio_seq_write.jpg


Todo:
- bmap() support for delayed allocation
- page reserve flag to indicate the delayed allocation
- ordered mode support for delayed allocation
- "bh" support to enable blocksize = 1k/2k filesystems



Cheers,

Mingming



       reply	other threads:[~2005-07-17 17:40 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1110839154.24286.302.camel@dyn318077bld.beaverton.ibm.com>
2005-07-17 17:40 ` Mingming Cao [this message]
2005-07-17 17:45   ` [RFC] [PATCH 0/4]Multiple block allocation and delayed allocation for ext3 Mingming Cao
2005-07-17 17:40 ` [RFC] [PATCH 1/4]Multiple block " Mingming Cao
2005-07-17 17:40 ` [RFC] [PATCH 2/4]delayed " Mingming Cao
2005-07-18  1:47   ` [Ext2-devel] " Andreas Dilger
2005-07-18 17:32     ` Mingming Cao
2005-07-19  0:25     ` Badari Pulavarty
2005-07-26 22:52   ` Andrew Morton
2005-07-26 22:55     ` Badari Pulavarty
2005-07-17 17:40 ` [RFC] [PATCH 3/4]generic getblocks() support in mpage_writepages Mingming Cao
2005-07-17 17:41 ` [RFC] [PATCH 4/4]add ext3 writeback writpages Mingming Cao

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