KernelTrap: Benchmarking Journaling Filesystems In 2.6.0-test2

"Grant Miner posted some interesting benchmark results to the lkml, comparing five journaling filesystems available with the current 2.6.0-test2 development kernel. The tests were conducted with a very simple shell script, mainly timing how long it takes to copy, tar, and remove directories, performing several syncs in between. He summarizes:

• "ext3's syncs tended to take the longest [at] 10 seconds, except
• "JFS took a whopping 38.18s on its final sync
• "xfs used more CPU than ext3 but was slower than ext3
• "reiser4 had highest throughput and most CPU usage
• "jfs had lowest throughput and least CPU usage

"Some interesting discussion follows, debating the results and offering further suggestions on making the tests more useful. For example, Andrew Morton proposed including ext2 in the tests as a baseline, and Hans Reiser noted that reiser4 continues to improve rapidly. Read on for the full test results and much of the following discussion..."

Complete Story

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