On 13 Oct 2009, at 10:28, Patrik Nordwall wrote:
I think (hope) I have found the root of problem.
I found a test program in SonicMQ documentation:
http://communities.progress.com/pcom/servlet/JiveServlet/download/10720-3-10090/mq_tuning_76.pdf
It tests performance of RandomAccessFile.getFD().sync()
Is that relevant for ActiveMQ persistence performance?
When running this on the test server I got 145 syncs/second. It
should be
mid-range SAN, but it must be something wrong with it.
I tested on high-end SAN and got 2300 syncs/second.
/Patrik
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Yes - that would certainly have an impact on performance for
persistent messages :)
Rob Davies
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