On Sat, 9 Feb 2008, Janek Kozicki wrote:

Justin Piszcz said:     (by the date of Sat, 9 Feb 2008 04:14:51 -0500 (EST))

When you reate the array its --chunk or -c -- I found 256 KiB to 1024 KiB
to be optimal.

Hello Justin,

what is your typical bonnie++ invocation, to test your configuration?
Which fields are meaningful for you from this benchmark?

Do you use anything else for benchmarks?
eg: 'zcav /dev/sda > result' ?


I'm asking becuase I want to make some local benchmarks to determine
best chunk size in my HDD setup.

thanks in advance
--
Janek Kozicki                                                         |
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I use the following (3-iterations & average them):

/usr/bin/time /usr/sbin/bonnie++ -d /x/test -s 16384 -m p34 -n 16:100000:16:64 > $HOME/test"$i".txt 2>&1

I also use realistic testing as well such as untarring large files (> 1GiB) etc..

Justin.
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