FreeBSD 5.3b7and poor ata performance
fandino at ng.fadesa.es
Fri Oct 15 11:06:14 PDT 2004
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:
I'm unable to explain why the performance is so bad, perhaps
someone can explain this low throughput.
developers, shell access is available if necessary. Contact me by
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