[Bamboo-Users] high cpu load

[Olaf Görlitz]

Hi all,

I'm experiencing a constantly high cpu load of 100% when running bamboo.
I tried to pinpoint the cause with Java's build in profiler (-Xprof) and
got following output for Thread-1 which is the ASyncCoreImpl instance.

Flat profile of 198.82 secs (9964 total ticks): Thread-1

  Interpreted + native   Method
 99.3%     0  +  9878    sun.nio.ch.PollArrayWrapper.poll0
  0.3%     0  +    31    com.sleepycat.db.db_javaJNI.DbEnv_open0
  0.2%     0  +    15    com.sleepycat.db.db_javaJNI.initialize
  0.0%     0  +     3    com.sleepycat.db.db_javaJNI.DbTxn_commit0
  0.0%     0  +     3    bamboo.dht.ReturnToClient.<init>
  0.0%     0  +     2    java.lang.Thread.start0
  0.0%     0  +     2    java.lang.Class.forName0
 ...
 99.9%     5  +  9936    Total interpreted

Does anyone know why sun.nio.ch.PollArrayWrapper.poll0 is called so
often? How can I reduce the cpu load?

Regards,
Olaf