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Message-ID: <20080725162314.GC4944@T61.linuxsymposium.org>
Date:	Fri, 25 Jul 2008 18:23:14 +0200
From:	Jan Blunck <jblunck@...e.de>
To:	linux-ext4@...r.kernel.org
Subject: kernel build time

After Andreas talk yesterday I did some tests on my T61. This is not really a
perfect benchmark setup but Andreas said I should send the data anyway.

make clean (ext3)
real    0m3.073s
user    0m1.324s
sys     0m1.444s

make -j 4 (ext3)
real    6m37.377s
user    10m58.081s
sys     1m38.890s

make clean (ext4)
real    0m6.443s
user    0m1.712s
sys     0m1.824s

make -j 4 (ext4)
real    6m42.694s
user    10m59.593s
sys     1m36.994s

Filesystem features:      has_journal ext_attr resize_inode dir_index filetype
needs_recovery extent flex_bg sparse_super large_file huge_file uninit_bg
dir_nlink extra_isize
Filesystem flags:         signed_directory_hash test_filesystem 

That is with the patch queue from
http://www.kernel.org/pub/linux/kernel/people/tytso/ext4-patches/2.6.26-ext4-1
on top of 2.6.26. Both ext3 and ext4dev are running on logical volumes (no
barrier support). I used the latest e2fsprogs available.

HTH,
Jan
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