Github user KellenSunderland commented on the issue:
https://github.com/apache/incubator-joshua/pull/81
Cool thanks @thammegowda. One thing to be aware of is that as you increase
JVM memory you effectively take away memory from KenLM. What I've done in the
past is just run a quick Java Flight Recorder session to verify the issue is
excess garbage collection. If it it then increasing jvm args is the way to go.
Otherwise you may want to take a look at how much IO is being caused by KenLM,
and what mode of memory allocation it's using.
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