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barrac
2005 Mar 17
1
ocfs seek-performance
...nnel.
the throughput does not exceed 10mb/s, average is 7-8 mb/s. i've used 'iostat -x' and got rkB/s=8000
while %util=100% (device was saturated) from kernel's POV.
i did some benchmarking with Bonnie (http://www.textuality.com/bonnie/):
# ./Bonnie -d /tmp/ocfstest/ -s 1024 -m bn1rac001 -o_direct -p 1
Bonnie 1.4: File '/tmp/ocfstest/Bonnie.7166', size: 1073741824, volumes: 1
Using O_DIRECT for block based I/O
Writing with putc()... done: 10816 kB/s 59.1 %CPU
Rewriting... done: 15607 kB/s 2.2 %CPU
Writing intelligently... done: 18442...