powertop and java

[Mehmet D. AKIN]

We have a java spell checking  daemon which is started at boot time.
Here is the results for a sample system in idle state:

  23.0%    hald-addon-cpuf : queue_delayed_work_on (delayed_work_timer_fn)
  15.9%               java : schedule_timeout (process_timeout)
  10.4%            knotify : schedule_timeout (process_timeout)
   9.8%            beagled : schedule_timeout (process_timeout)
   9.6%        <interrupt> : libata
   5.1%        <interrupt> : ipw2200

Question is, aferemonetioned java daemon practically does nothing but
waits for connections, why does it wakeups so much?  I dont think GC
threads wake-up so frequently or do they?. Can anyone else confirm
this? (Write a simple java app which only sleeps and check its
powertop output)

It would be nice to identify this probem. There are many java
applications, which might benefit from this.

Mehmet