|From:||Mingming Cao <email@example.com>|
|To:||ext2-devel <firstname.lastname@example.org>, Andrew Morton <email@example.com>, "Stephen C. Tweedie" <firstname.lastname@example.org>, linux-kernel <email@example.com>, firstname.lastname@example.org|
|Subject:||[RFC] [PATCH 0/4]Multiple block allocation and delayed allocation for ext3|
|Date:||Sun, 17 Jul 2005 10:40:02 -0700|
|Cc:||Badari Pulavarty <email@example.com>, firstname.lastname@example.org, email@example.com, firstname.lastname@example.org, email@example.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_wr... 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 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to firstname.lastname@example.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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