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SubjectLinux 2.6.24 Through Linux 2.6.33 Benchmarks
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Linux 2.6.24 Through Linux 2.6.33 Benchmarks

http://www.phoronix.com/scan.php?page=article&item=linux_2624_2633&num=1

quote:
"This test system was using the EXT3 file-system and we found its
TPC-B database performance to improve by many times between the Linux
2.6.29 and 2.6.30 kernel releases. In fact, the Linux 2.6.30 kernel
was 770% faster than its predecessor was and it remained that way with
the Linux 2.6.31 kernel and then regressed only slightly with the
Linux 2.6.32 kernel. With the new Linux 2.6.33 kernel, however, the
PostgreSQL performance atop the EXT3 file-system has fallen off a
cliff. Not only has the PostgreSQL performance lost its gains made
during the 2.6.30 development cycle, but also with Linux 2.6.33, it is
actually much slower than it was in any of the pre-2.6.30 releases."

http://www.phoronix.com/data/img/results/linux_2624_2633/2.png


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