[Quickfixj-users] Need help with performance hints

[Sandhu, B. <Bal...@rb...>]

Hi all

We have been running some performance tests against QuickFIX/J. I have
some general questions. I would really appreciate some advise.

Our app acts as the initiator (client). We wrote a stub acceptor for the
load test - very similar to the code sample provided. Surprisingly,
after getting to about 1 msg/s we start seeing Sequence number too
high/low errors. Also, the CPU is idling on the Acceptor side but the
msgs are taking several seconds to respond. Given that these are just
stubbed out responses without any real workflow, this is odd.

We started looking at ways of improving performance and one of the
things we are planning on trying is the MemoryMessageStore. While
looking at the source I noticed that access to the internal HashMap in
the MemoryStore is not synchonized/thread safe. Is this on purpose?

When picking up msgs from the quickfix.Application is it
advisable/necessary to pick up msgs via a thread pool?

Given minimal workflow in processing messages what msg rate should we
expect to process on the acceptor side? It's a 16GB/8 core server.

Are there other known config options which improve performance ?

Thanks a lot
Baljeet
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