I initially posted this on the sourceforge STAF forum yesterday(?), but my post 
seems to have gone missing so I'll give the email list a shot...

We are experiencing, and not for the first time, STAFProc and the STAX JVM 
sucking lots of CPU on the machine which is our dedicated 'STAX server,' i.e. 
the one running the STAX service through which all our production STAX scripts 
are run (while other clients actually execute the processes called in the STAX 
jobs).  

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND           
14481 root      20   0 1351m  20m 4360 S  107  1.0  11957:39 STAFProc           
14533 root      20   0  989m 200m  18m S   61  9.9   6442:09 java               

this is on a 4-core fedora core 7, x86_64 box, with STAF 3.3.4.1, STAX 3.3.7.

the high load began last tuesday morning just past midnight; the one job which 
has been running since Monday afternoon is our longevity test, which has run 
many times before (since last modified) without the system CPU pegging.  the 
only impairment we see is that STAX jobs are taking longer to launch, which has 
caused some timing-sensitive cases to fail.  

I've looked in the stdout for STAFProc, nothing there but the launch message, 
and similar for the STAX jvm log:
******************************************************************************
*** 20091007-19:52:31 - Start of Log for JVMName: STAX
*** JVM Executable: /usr/java/jdk1.5.0_14/jre/bin/java
*** JVM Options   : -Xmx384m 
*** JVM Version   : java version "1.5.0_14"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_14-b03)
Java HotSpot(TM) 64-Bit Server VM (build 1.5.0_14-b03, mixed mode)
*** JVM PID       : 14533
******************************************************************************
*sys-package-mgr*: processing new jar, '/usr/local/staf/lib/JSTAF.jar'
*sys-package-mgr*: processing new jar, 
'/usr/local/staf/samples/demo/STAFDemo.jar'
*sys-package-mgr*: processing new jar, '/usr/local/staf/services/stax/STAX.jar'
*sys-package-mgr*: processing new jar, 
'/usr/local/staf/data/STAF/lang/java/shared_jython/2.1-staf-v3.3/jython.jar'
*sys-package-mgr*: processing new jar, '/usr/java/jdk1.5.0_14/jre/lib/rt.jar'
*sys-package-mgr*: processing new jar, '/usr/java/jdk1.5.0_14/jre/lib/jsse.jar'
*sys-package-mgr*: processing new jar, '/usr/java/jdk1.5.0_14/jre/lib/jce.jar'
*sys-package-mgr*: processing new jar, 
'/usr/java/jdk1.5.0_14/jre/lib/charsets.jar'
*sys-package-mgr*: processing new jar, 
'/usr/java/jdk1.5.0_14/jre/lib/ext/dnsns.jar'
*sys-package-mgr*: processing new jar, 
'/usr/java/jdk1.5.0_14/jre/lib/ext/sunpkcs11.jar'
*sys-package-mgr*: processing new jar, 
'/usr/java/jdk1.5.0_14/jre/lib/ext/sunjce_provider.jar'
*sys-package-mgr*: processing new jar, 
'/usr/java/jdk1.5.0_14/jre/lib/ext/localedata.jar'

Registered Extensions for STAX Version 3.3.7:


any ideas on where else to poke and prod to get some sense of what's spinning 
the CPU?  

thanks in advance,
nathan

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