Date: Fri, 15 Oct 2004 20:06:12 +0200 From: fandino <fandino@ng.fadesa.es> To: freebsd-current@freebsd.org Subject: FreeBSD 5.3b7and poor ata performance Message-ID: <41701194.5010107@ng.fadesa.es>
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Hello, This is an interesting issue. While I was installing FreeBSD 5.3b7 I wonder about the performance that the new branch will bring to my computer, and it was a deception how bad FreeBSD performs compared with Linux on the same hardware (even I repeat the test on different PC with identical results). Tests were done win bonnie++ 1.93c and the results were Linux two times faster than FreeBSD using the same hardware. GNU/Linux 2.4.18 with ext2: 56848 K/sec FreeBSD 5.3b7 with default fs: 26347 K/sec FreeBSD 5.3b7 ata raid0* (two disks): 26131 K/sec FreeBSD 5.3b7 geom stripe* (two disks): 30063 K/sec * these results are even more poor. Each disk of the raid give a throughput of approx. 15000 K/sec Please see the results here: http://195.55.55.164/tests/bsd.txt http://195.55.55.164/tests/linux.txt http://195.55.55.164/tests/dmesg.txt I'm unable to explain why the performance is so bad, perhaps someone can explain this low throughput. Thank you. developers, shell access is available if necessary. Contact me by private mail.
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