Optimizing CPU usage Oracle on Linux

We have a 2 CPU Compaq with Oracle on Linux, and performance is slower than Oracle on NT (100%). Any tip for CPU tuning ?

A start could be to enable a few extra HD parameters:
hdparm -c1 -d1 -u1 /dev/hda
Just to enable dma / interrupt control / ... Nothing Oracle, just linux.
null

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  • Process high CPU usage

    First of all, sorry for my pour English.
    O.S.:
    pceudb9:~ # cat /etc/*release
    SUSE Linux Enterprise Server 10 (x86_64)
    VERSION = 10
    PATCHLEVEL = 2
    Database:
    SQL> select * from v$version;
    BANNER
    Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production
    PL/SQL Release 11.2.0.1.0 - Production
    CORE 11.2.0.1.0 Production
    TNS for Linux: Version 11.2.0.1.0 - Production
    NLSRTL Version 11.2.0.1.0 - Production
    SQL>
    I'm having this process on TOP whith high CPU usage:
    oracle@pceudb9:~> top
    top - 15:22:25 up 576 days, 21:09, 3 users, load average: 1.32, 1.50, 1.53
    Tasks: 326 total, 1 running, 325 sleeping, 0 stopped, 0 zombie
    Cpu(s): 12.7%us, 0.1%sy, 0.1%ni, 86.7%id, 0.4%wa, 0.0%hi, 0.0%si, 0.0%st
    Mem: 66012172k total, 61524088k used, 4488084k free, 1595320k buffers
    Swap: 67108856k total, 64748k used, 67044108k free, 18705464k cached
    PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
    16026 oracle 16 0 1440m 807m 20m S 100 1.3 28575:34 /u01/app/oragrid/11.2.0/jdk/jre//bin/java -Doracle.supercluster.cluster.server=eonsd -Djava.net.p
    6925 oracle 16 0 9880 1528 976 R 0 0.0 0:00.01 top
    oracle@pceudb9:~> ps auxww|grep -i 16026|grep -iv grep|grep -iv /u01/app/oragrid/11.2.0/bin/orarootagent.bin
    oracle 16026 16.4 1.2 1475532 826580 ? Sl Jul20 28576:32 /u01/app/oragrid/11.2.0/jdk/jre//bin/java -Doracle.supercluster.cluster.server=eonsd -Djava.net.preferIPv4Stack=true -Djava.util.logging.config.file=/u01/app/oragrid/11.2.0/srvm/admin/logging.properties -classpath /u01/app/oragrid/11.2.0/jdk/jre//lib/rt.jar:/u01/app/oragrid/11.2.0/jlib/srvm.jar:/u01/app/oragrid/11.2.0/jlib/srvmhas.jar:/u01/app/oragrid/11.2.0/jlib/supercluster.jar:/u01/app/oragrid/11.2.0/jlib/supercluster-common.jar:/u01/app/oragrid/11.2.0/ons/lib/ons.jar oracle.supercluster.impl.cluster.EONSServerImpl
    CPU is always 100% (sometimes more...)
    Can somebody help me please? What is this process? This is a bug? I can't find anything on metalink.
    Thanks in advice.
    Regards
    Vitor

    Thanks for reply. Answer for questions:
    There was a bug where if you had a DB that was registered in CRS using an older version of srvctl it would cause eons to spin.
    Is there only one instance on this node? Has it always been 11gR2? Are there repeating messages in $GRID_HOME/log/pceudb9/agent/crsd/oraagent_oracle/oraagent_oracle.log ?
    Edit: I found the MOS note: 1062675.1
    I was remembering the bug incorrectly -- it happens if you register a DB with a newer version of srvctl than the DB is. Same questions would apply, though.
    Is there only one instance on this node?
    oracle@pceudb9:~> ps auxww|grep -i pmon
    oracle 15555 0.0 0.1 190492 88356 ? Ss Jul20 0:05 asm_pmon_+ASM1
    oracle 16181 0.0 50.8 214080 33576804 ? Ss Jul20 1:52 ora_pmon_jpharm1
    oracle 21318 0.0 0.0 3932 836 pts/2 S+ 16:07 0:00 grep -i pmon
    oracle@pceudb9:~>
    Has it always been 11gR2? No. We upgraded this db.
    Are there repeating messages in $GRID_HOME/log/pceudb9/agent/crsd/oraagent_oracle/oraagent_oracle.log ?
    oracle@pceudb9:/u01/app/oragrid/11.2.0/log> ls -ltrh pceudb9/agent/crsd/oraagent_oracle/oraagent_oracle.log
    -rw-r--r-- 1 oracle oinstall 1.9M 2011-11-18 16:10 pceudb9/agent/crsd/oraagent_oracle/oraagent_oracle.log
    tail on file:
    2011-11-18 16:12:02.617: [ora.asm][1510000960] [check] CrsCmd::ClscrsCmdData filter on LAST_SERVER eq pceudb9
    2011-11-18 16:12:02.617: [ora.asm][1510000960] [check] CrsCmd::ClscrsCmdData filter on NAME eq ora.asm
    2011-11-18 16:12:02.617: [ora.asm][1510000960] [check] CrsCmd::stat resName ora.asm statflag 1 useFilter 0
    2011-11-18 16:12:02.617: [ora.asm][1510000960] [check] CrsCmd::ClscrsCmdData::stat entity 1 statflag 1 useFilter 0
    2011-11-18 16:12:02.640: [ora.asm][1510000960] [check] CrsCmd::ClscrsCmdData::stat resname ora.asm 1 1 attr STATE value ONLINE
    2011-11-18 16:12:02.640: [ora.asm][1510000960] [check] CrsCmd::stat resName ora.asm state ONLINE
    2011-11-18 16:12:02.641: [ora.asm][1510000960] [check] CrsCmd::ClscrsCmdData::stat resname ora.asm 1 1 attr STATE_DETAILS value Started
    2011-11-18 16:12:02.641: [ora.asm][1510000960] [check] CrsCmd::stat resName ora.asm state details Started
    2011-11-18 16:12:02.641: [ora.asm][1510000960] [check] CrsCmd::ClscrsCmdData::stat resname ora.asm 1 1 attr INCARNATION value 1
    2011-11-18 16:12:02.641: [    AGFW][1510000960] check for resource: ora.asm pceudb9 1 completed with status: ONLINE
    2011-11-18 16:12:03.117: [    AGFW][1342208320] CHECK initiated by timer for: ora.jpharm.db 1 1
    2011-11-18 16:12:03.118: [    AGFW][1543559488] Executing command: check for resource: ora.jpharm.db 1 1
    2011-11-18 16:12:03.118: [ora.jpharm.db][1543559488] [check] Gimh::check condition (GIMH_NEXT_NUM) 9 exists
    2011-11-18 16:12:03.118: [    AGFW][1543559488] check for resource: ora.jpharm.db 1 1 completed with status: ONLINE
    2011-11-18 16:12:04.117: [    AGFW][1342208320] CHECK initiated by timer for: ora.jpharm.db 1 1
    2011-11-18 16:12:04.118: [    AGFW][1711352128] Executing command: check for resource: ora.jpharm.db 1 1
    2011-11-18 16:12:04.118: [ora.jpharm.db][1711352128] [check] Gimh::check condition (GIMH_NEXT_NUM) 9 exists
    2011-11-18 16:12:04.118: [    AGFW][1711352128] check for resource: ora.jpharm.db 1 1 completed with status: ONLINE
    2011-11-18 16:12:05.117: [    AGFW][1342208320] CHECK initiated by timer for: ora.jpharm.db 1 1
    2011-11-18 16:12:05.118: [    AGFW][1778469184] Executing command: check for resource: ora.jpharm.db 1 1
    2011-11-18 16:12:05.118: [ora.jpharm.db][1778469184] [check] Gimh::check condition (GIMH_NEXT_NUM) 9 exists
    2011-11-18 16:12:05.118: [    AGFW][1778469184] check for resource: ora.jpharm.db 1 1 completed with status: ONLINE
    2011-11-18 16:12:06.117: [    AGFW][1342208320] CHECK initiated by timer for: ora.jpharm.db 1 1
    2011-11-18 16:12:06.118: [    AGFW][1744910656] Executing command: check for resource: ora.jpharm.db 1 1
    2011-11-18 16:12:06.118: [ora.jpharm.db][1744910656] [check] Gimh::check condition (GIMH_NEXT_NUM) 9 exists
    2011-11-18 16:12:06.118: [    AGFW][1744910656] check for resource: ora.jpharm.db 1 1 completed with status: ONLINE
    2011-11-18 16:12:07.117: [    AGFW][1342208320] CHECK initiated by timer for: ora.jpharm.db 1 1
    2011-11-18 16:12:07.118: [    AGFW][1308649792] Executing command: check for resource: ora.jpharm.db 1 1
    2011-11-18 16:12:07.118: [ora.jpharm.db][1308649792] [check] Gimh::check condition (GIMH_NEXT_NUM) 9 exists
    2011-11-18 16:12:07.118: [    AGFW][1308649792] check for resource: ora.jpharm.db 1 1 completed with status: ONLINE
    2011-11-18 16:12:08.117: [    AGFW][1342208320] CHECK initiated by timer for: ora.jpharm.db 1 1
    2011-11-18 16:12:08.118: [    AGFW][1644235072] Executing command: check for resource: ora.jpharm.db 1 1
    2011-11-18 16:12:08.118: [ora.jpharm.db][1644235072] [check] Gimh::check condition (GIMH_NEXT_NUM) 9 exists
    2011-11-18 16:12:08.118: [    AGFW][1644235072] check for resource: ora.jpharm.db 1 1 completed with status: ONLINE
    oracle@pceudb9:/u01/app/oragrid/11.2.0/log>
    Thanks again! :)

  • High Cpu usage flash 11 while videobroadcasting

    Good day,
    in flash 10 my avg cpu load was 50-60% while broadcasting 7-8 websites at the same time
    in betatesting flash11 this has gone a little bit up but was still within margins
    when the definitive version came out, i am only able to broadcast 3 sites with a CPU load of 90%
    please tell me what i can do to lower cpu usage.     

    The linux version of flash has no hardware acceleration for most (it has mediocre acceleration if you have an nvidia card that supports vdpau), so it uses lots of cpu. On my laptop with a core i5 2.53 ghz, a 720 flash vid will use 20-30% cpu. The same video played in a native application like mplayer will use like 5% (and I don't even have any video acceleration enabled in mplayer because vaapi is buggy for me)
    litemotiv wrote:Also check what you have set in /etc/adobe/mms.cfg
    I recall reading somewhere that the mms.cfg tweak to force hw accel no longer works in flash 11, but I cant seem to find the source on that now.
    Last edited by bwat47 (2012-03-03 19:59:19)

  • SCCM 2012 R2 Linux\Unix Client High CPU Usage

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    Hi Chris,
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    Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

  • Oracle taking 100% CPU usage

    Hi,
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    The First Rule Of Performance Troubleshooting: IDENTIFY THE PERFORMANCE PROBLEM.
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  • In Oracle 10g,nmupm.exe  runs at 100% CPU usages

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    This is a known issue, see here
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  • Oracle 10g --- cpu usage

    Hi,
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  • ORACLE CONSUMING 99% OF CPU USAGES

    Hello All,
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    Thu Aug 28 14:20:29 2008
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    ORA-07445: exception encountered: core dump [ACCESS_VIOLATION] [unable_to_trans_pc] [PC:0x7C9111E0] [ADDR:0x4] [UNABLE_TO_READ] []
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    With Regards
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  • How do you get the CPU Usage in Linux

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    RAM: 2GB
    OS: RHEL4.4 (2.6.9-42.0.2.ELsmp)
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    JAVA_OPTS="-Xms768m -Xmx768m -XXtlasize16k -XXlargeobjectlimit16k -Xverbose:memory,cpuinfo -Xverboselog:/var/log/tomcat5/jvm.log -Xverbosetimestamp"
    Here are excerpts from my verbose log (I'm getting some HT warning, not sure if that's a problem):
    [Fri Oct 20 15:54:18 2006][22855][cpuinfo] Detected SMP with 2 CPUs that support HT.
    [Fri Oct 20 15:54:18 2006][22855][cpuinfo] Trying to determine if HT is enabled.
    [Fri Oct 20 15:54:18 2006][22855][cpuinfo] Trying to read from /dev/cpu/0/cpuid
    [Fri Oct 20 15:54:18 2006][22855][cpuinfo] Warning: Failed to read from /dev/cpu/0/cpuid
    [Fri Oct 20 15:54:18 2006][22855][cpuinfo] Trying to read from /dev/cpu/1/cpuid
    [Fri Oct 20 15:54:18 2006][22855][cpuinfo] Warning: Failed to read from /dev/cpu/1/cpuid
    [Fri Oct 20 15:54:18 2006][22855][cpuinfo] HT is: supported by the CPU, not enabled by the OS, enabled in JRockit.
    [Fri Oct 20 15:54:18 2006][22855][cpuinfo] Warning: HT enabled even though OS does not seem to support it.
    [Fri Oct 20 15:54:55 2006][22855][memory ] GC strategy: System optimized over throughput (initial strategy singleparpar)
    [Fri Oct 20 15:54:55 2006][22855][memory ] heap size: 786432K, maximal heap size: 786432K
    [Fri Oct 20 16:07:30 2006][22855][memory ] Changing GC strategy to generational, parallel mark and parallel sweep
    [Fri Oct 20 16:07:30 2006][22855][memory ] 791.642-791.874: GC 786432K->266892K (786432K), 232.000 ms
    [Fri Oct 20 16:08:02 2006][22855][memory ] 824.122: nursery GC 291998K->274164K (786432K), 175.873 ms
    [Fri Oct 20 16:09:51 2006][22855][memory ] 932.526: nursery GC 299321K->281775K (786432K), 110.879 ms
    [Fri Oct 20 16:10:24 2006][22855][memory ] 965.844: nursery GC 308151K->292222K (786432K), 174.609 ms
    [Fri Oct 20 16:11:54 2006][22855][memory ] 1056.368: nursery GC 314718K->300068K (786432K), 66.032 ms
    [Sat Oct 21 23:21:09 2006][22855][memory ] 113210.427: nursery GC 734274K->676137K (786432K), 188.985 ms
    [Sat Oct 21 23:30:41 2006][22855][memory ] 113783.140: nursery GC 766601K->708592K (786432K), 96.007 ms
    [Sat Oct 21 23:36:15 2006][22855][memory ] 114116.332-114116.576: GC 756832K->86835K (786432K), 243.333 ms
    [Sat Oct 21 23:48:20 2006][22855][memory ] 114841.653: nursery GC 182299K->122396K (786432K), 175.252 ms
    [Sat Oct 21 23:48:52 2006][22855][memory ] 114873.851: nursery GC 195060K->130483K (786432K), 142.122 ms
    [Sun Oct 22 00:01:31 2006][22855][memory ] 115632.706: nursery GC 224096K->166618K (786432K), 327.264 ms
    [Sun Oct 22 00:16:37 2006][22855][memory ] 116539.368: nursery GC 246564K->186328K (786432K), 173.888 ms
    [Sun Oct 22 00:26:21 2006][22855][memory ] 117122.577: nursery GC 279056K->221543K (786432K), 170.367 ms
    [Sun Oct 22 00:26:21 2006][22855][memory ] 117123.041: nursery GC 290439K->225833K (786432K), 69.170 ms
    [Sun Oct 22 00:29:10 2006][22855][memory ] 117291.795: nursery GC 298947K->238083K (786432K), 207.200 ms
    [Sun Oct 22 00:39:05 2006][22855][memory ] 117886.478: nursery GC 326956K->263441K (786432K), 87.009 ms
    [Sun Oct 22 00:55:22 2006][22855][memory ] 118863.947: nursery GC 357229K->298971K (786432K), 246.643 ms
    [Sun Oct 22 01:08:17 2006][22855][memory ] 119638.750: nursery GC 381744K->322332K (786432K), 147.996 ms
    [Sun Oct 22 01:11:22 2006][22855][memory ] 119824.249: nursery GC 398678K->336478K (786432K), 93.046 ms
    [Sun Oct 22 01:21:35 2006][22855][memory ] 120436.740: nursery GC 409150K->345186K (786432K), 81.304 ms
    [Sun Oct 22 01:21:38 2006][22855][memory ] 120439.582: nursery GC 409986K->345832K (786432K), 153.534 ms
    [Sun Oct 22 01:21:42 2006][22855][memory ] 120443.544: nursery GC 410632K->346473K (786432K), 121.371 ms
    [Sun Oct 22 01:21:44 2006][22855][memory ] 120445.508: nursery GC 411273K->347591K (786432K), 60.688 ms
    [Sun Oct 22 01:21:44 2006][22855][memory ] 120445.623: nursery GC 412391K->347785K (786432K), 68.935 ms
    [Sun Oct 22 01:21:45 2006][22855][memory ] 120446.576: nursery GC 412585K->348897K (786432K), 152.333 ms
    [Sun Oct 22 01:21:45 2006][22855][memory ] 120446.783: nursery GC 413697K->349080K (786432K), 70.456 ms
    [Sun Oct 22 01:34:16 2006][22855][memory ] 121197.612: nursery GC 437378K->383392K (786432K), 165.771 ms
    [Sun Oct 22 01:37:37 2006][22855][memory ] 121398.496: nursery GC 469709K->409076K (786432K), 78.257 ms
    [Sun Oct 22 01:37:37 2006][22855][memory ] 121398.730: nursery GC 502490K->437713K (786432K), 65.747 ms
    [Sun Oct 22 01:44:03 2006][22855][memory ] 121785.259: nursery GC 536605K->478156K (786432K), 132.293 ms
    [Sun Oct 22 01:44:04 2006][22855][memory ] 121785.603: nursery GC 568408K->503635K (786432K), 71.751 ms
    [Sun Oct 22 01:50:39 2006][22855][memory ] 122180.985: nursery GC 591332K->530811K (786432K), 131.831 ms
    [Sun Oct 22 02:13:52 2006][22855][memory ] 123573.719: nursery GC 655566K->595257K (786432K), 117.311 ms
    [Sun Oct 22 02:36:04 2006][22855][memory ] 124905.507: nursery GC 688896K->632129K (786432K), 346.990 ms
    [Sun Oct 22 02:50:24 2006][22855][memory ] 125765.715-125765.904: GC 786032K->143954K (786432K), 189.000 ms
    [Sun Oct 22 02:50:26 2006][22855][memory ] 125767.535-125767.761: GC 723232K->70948K (786432K), 225.000 ms
    vvvvv
    [Sun Oct 22 02:50:27 2006][22855][memory ] 125768.751-125768.817: GC 712032K->71390K (786432K), 64.919 ms
    [Sun Oct 22 02:50:28 2006][22855][memory ] 125769.516-125769.698: GC 711632K->61175K (786432K), 182.000 ms
    [Sun Oct 22 02:50:29 2006][22855][memory ] 125770.753-125770.880: GC 709632K->81558K (786432K), 126.000 ms
    [Sun Oct 22 02:50:30 2006][22855][memory ] 125771.699-125771.878: GC 708432K->61368K (786432K), 179.000 ms
    So, I'm running with the default GC strategy which lets the GC pick the most suitable approach (single space or generational). It seems to switch to generational almost immediately and runs well - most GC runs are in the nursery, and only once in a while it goes through the older space.
    Now, if you look at [Sun Oct 22 02:50:27 2006], that's when everything changes. GC starts running every second (later on it's running 3 times a second) doing huge sweeps. It never goes through the nursery again, although the strategy is still generational.
    It's all downhill from this point on, and it's a matter of hours (maybe a day) before we restart the server.
    I guess my only question is: What would cause such GC behavior?
    I would appreciate your ideas/comments!
    Thanks,
    Tenyo

  • High CPU usage with Coherence 3.5.0 cluster node

    We're noticing sustained high CPU usage on one of our Coherence nodes - this happens after running a job that pretty intensively interacts with the cache. The jobs complete, however we still see the Coherence process using approximately the equivalent of one core's worth of CPU. I took a couple of thread dumps about fifteen minutes apart, and the only noticeable differences are within the PacketListener1 and PacketListenerN threads - they're holding locks on different DatagramPacket instances, which suggests to be that this may be the piece of code that is looping.
    There are two other cache nodes in this particular cluster - both of them on a different machine - and neither of them are exhibiting the same CPU utilization.
    Environment:
    Coherence 3.5.0
    Java - BEA JRockit(R) (build R27.6.3-40_o-112056-1.6.0_11-20090318-2103-linux-x86_64, compiled mode)
    Has anyone encountered this scenario before?
    Here's a copy of the two thread dumps:
    Thread Dump 1 -
    ===== FULL THREAD DUMP ===============
    Thu Feb 24 21:45:00 2011
    BEA JRockit(R) R27.6.3-40_o-112056-1.6.0_11-20090318-2103-linux-x86_64
    "Main Thread" id=1 idx=0x4 tid=18143 prio=5 alive, in native, waiting
    -- Waiting for notification on: java/lang/Class@0x43587b58[fat lock]
    at jrockit/vm/Threads.waitForNotifySignal(JLjava/lang/Object;)Z(Native Method)
    at java/lang/Object.wait(J)V(Native Method)[optimized]
    at com/tangosol/net/DefaultCacheServer.main(DefaultCacheServer.java:80)
    ^-- Lock released while waiting: java/lang/Class@0x43587b58[fat lock]
    at com/zzzz/carbon/cacheserver/ZzzzCoherenceServerStartup.doWork(ZzzzCoherenceServerStartup.java:29)
    at com/zzzz/util/runner/ZzzzRunnerBase.run(ZzzzRunnerBase.java:23)
    at com/zzzz/carbon/cacheserver/ZzzzCoherenceServerStartup.main(ZzzzCoherenceServerStartup.java:16)
    at jrockit/vm/RNI.c2java(JJJJJ)V(Native Method)
    -- end of trace
    "(Signal Handler)" id=2 idx=0x8 tid=18144 prio=5 alive, in native, daemon
    "(GC Main Thread)" id=3 idx=0xc tid=18145 prio=5 alive, in native, daemon
    "(GC Worker Thread 1)" id=? idx=0x10 tid=18146 prio=5 alive, in native, daemon
    "(GC Worker Thread 2)" id=? idx=0x14 tid=18147 prio=5 alive, in native, daemon
    "(GC Worker Thread 3)" id=? idx=0x18 tid=18148 prio=5 alive, in native, daemon
    "(GC Worker Thread 4)" id=? idx=0x1c tid=18149 prio=5 alive, in native, daemon
    "(Code Generation Thread 1)" id=4 idx=0x20 tid=18150 prio=5 alive, in native, native_waiting, daemon
    "(Code Optimization Thread 1)" id=5 idx=0x24 tid=18151 prio=5 alive, in native, native_waiting, daemon
    "(VM Periodic Task)" id=6 idx=0x28 tid=18152 prio=10 alive, in native, daemon
    "Finalizer" id=7 idx=0x2c tid=18153 prio=8 alive, in native, native_waiting, daemon
    at jrockit/memory/Finalizer.waitForFinalizees([Ljava/lang/Object;)I(Native Method)
        at jrockit/memory/Finalizer.access$500(Finalizer.java:12)
        at jrockit/memory/Finalizer$4.run(Finalizer.java:159)
        at java/lang/Thread.run(Thread.java:619)
        at jrockit/vm/RNI.c2java(JJJJJ)V(Native Method)
        -- end of trace
    "Reference Handler" id=8 idx=0x30 tid=18154 prio=10 alive, in native, native_waiting, daemon
        at java/lang/ref/Reference.waitForActivatedQueue()Ljava/lang/ref/Reference;(Native Method)
        at java/lang/ref/Reference.access$100(Reference.java:11)
        at java/lang/ref/Reference$ReferenceHandler.run(Reference.java:79)
        at jrockit/vm/RNI.c2java(JJJJJ)V(Native Method)
        -- end of trace
    "(Sensor Event Thread)" id=9 idx=0x34 tid=18155 prio=5 alive, in native, daemon
    "Logger@9217551 3.5/459" id=12 idx=0x38 tid=18158 prio=3 alive, in native, waiting, daemon
        -- Waiting for notification on: com/tangosol/coherence/component/application/console/Coherence$Logger$Queue@0x4e1faef8[fat lock]
    at jrockit/vm/Threads.waitForNotifySignal(JLjava/lang/Object;)Z(Native Method)
    at java/lang/Object.wait(J)V(Native Method)[optimized]
    at com/tangosol/coherence/component/util/Daemon.onWait(Daemon.CDB:18)[optimized]
    ^-- Lock released while waiting: com/tangosol/coherence/component/application/console/Coherence$Logger$Queue@0x4e1faef8[fat lock]
    at com/tangosol/coherence/component/util/Daemon.run(Daemon.CDB:34)
    at java/lang/Thread.run(Thread.java:619)
    at jrockit/vm/RNI.c2java(JJJJJ)V(Native Method)
    -- end of trace
    "PacketListener1" id=14 idx=0x3c tid=18159 prio=8 alive, in native, daemon
    at java/net/PlainDatagramSocketImpl.receive0(Ljava/net/DatagramPacket;)V(Native Method)
    ^-- Holding lock: java/net/PlainDatagramSocketImpl@0x4cb21360[recursive]
    at java/net/PlainDatagramSocketImpl.receive(PlainDatagramSocketImpl.java:136)[inlined]
    at java/net/DatagramSocket.receive(DatagramSocket.java:712)[optimized]
    ^-- Holding lock: java/net/PlainDatagramSocketImpl@0x4cb21360[thin lock]
    ^-- Holding lock: java/net/DatagramPacket@0x73aa4e80[thin lock]
    ^-- Holding lock: java/net/DatagramSocket@0x4cb21338[thin lock]
    at com/tangosol/coherence/component/net/socket/UdpSocket.receive(UdpSocket.CDB:20)[optimized]
    at com/tangosol/coherence/component/net/UdpPacket.receive(UdpPacket.CDB:4)[optimized]
    at com/tangosol/coherence/component/util/daemon/queueProcessor/packetProcessor/PacketListener.onNotify(PacketListener.CDB:19)
    at com/tangosol/coherence/component/util/Daemon.run(Daemon.CDB:37)
    at java/lang/Thread.run(Thread.java:619)
    at jrockit/vm/RNI.c2java(JJJJJ)V(Native Method)
    -- end of trace
    "PacketReceiver" id=15 idx=0x40 tid=18160 prio=7 alive, in native, waiting, daemon
    -- Waiting for notification on: com/tangosol/coherence/component/net/Cluster$PacketReceiver$InQueue@0x4cf60d58[fat lock]
    at jrockit/vm/Threads.waitForNotifySignal(JLjava/lang/Object;)Z(Native Method)
    at java/lang/Object.wait(J)V(Native Method)[optimized]
    at com/tangosol/coherence/component/util/Daemon.onWait(Daemon.CDB:18)[inlined]
    at com/tangosol/coherence/component/util/daemon/queueProcessor/packetProcessor/PacketReceiver.onWait(PacketReceiver.CDB:2)[optimized]
    ^-- Lock released while waiting: com/tangosol/coherence/component/net/Cluster$PacketReceiver$InQueue@0x4cf60d58[fat lock]
    at com/tangosol/coherence/component/util/Daemon.run(Daemon.CDB:34)
    at java/lang/Thread.run(Thread.java:619)
    at jrockit/vm/RNI.c2java(JJJJJ)V(Native Method)
    -- end of trace
    "PacketPublisher" id=16 idx=0x44 tid=18161 prio=6 alive, in native, waiting, daemon
    -- Waiting for notification on: com/tangosol/coherence/component/net/Cluster$PacketPublisher$InQueue@0x4ca053a8[fat lock]
    at jrockit/vm/Threads.waitForNotifySignal(JLjava/lang/Object;)Z(Native Method)
    at java/lang/Object.wait(J)V(Native Method)[optimized]
    at com/tangosol/coherence/component/util/Daemon.onWait(Daemon.CDB:18)[inlined]
    at com/tangosol/coherence/component/util/daemon/queueProcessor/packetProcessor/PacketPublisher.onWait(PacketPublisher.CDB:2)[optimized]
    ^-- Lock released while waiting: com/tangosol/coherence/component/net/Cluster$PacketPublisher$InQueue@0x4ca053a8[fat lock]
    ^-- Lock released while waiting: com/tangosol/coherence/component/net/Cluster$PacketPublisher$InQueue@0x4ca053a8[fat lock]
    at com/tangosol/coherence/component/util/Daemon.run(Daemon.CDB:34)
    at java/lang/Thread.run(Thread.java:619)
    at jrockit/vm/RNI.c2java(JJJJJ)V(Native Method)
    -- end of trace
    "PacketSpeaker" id=17 idx=0x48 tid=18162 prio=8 alive, in native, waiting, daemon
    -- Waiting for notification on: com/tangosol/coherence/component/net/Cluster$PacketSpeaker$BundlingQueue@0x4cabe9d8[fat lock]
    at jrockit/vm/Threads.waitForNotifySignal(JLjava/lang/Object;)Z(Native Method)
    at java/lang/Object.wait(J)V(Native Method)[optimized]
    at com/tangosol/coherence/component/util/queue/ConcurrentQueue.waitForEntry(ConcurrentQueue.CDB:16)
    ^-- Lock released while waiting: com/tangosol/coherence/component/net/Cluster$PacketSpeaker$BundlingQueue@0x4cabe9d8[fat lock]
    at com/tangosol/coherence/component/util/queue/ConcurrentQueue.remove(ConcurrentQueue.CDB:7)
    at com/tangosol/coherence/component/util/Queue.remove(Queue.CDB:1)
    at com/tangosol/coherence/component/util/daemon/queueProcessor/packetProcessor/PacketSpeaker.onNotify(PacketSpeaker.CDB:62)
    at com/tangosol/coherence/component/util/Daemon.run(Daemon.CDB:37)
    at java/lang/Thread.run(Thread.java:619)
    at jrockit/vm/RNI.c2java(JJJJJ)V(Native Method)
    -- end of trace
    "PacketListenerN" id=18 idx=0x4c tid=18163 prio=8 alive, in native, daemon
    at java/net/PlainDatagramSocketImpl.receive0(Ljava/net/DatagramPacket;)V(Native Method)
    ^-- Holding lock: java/net/PlainDatagramSocketImpl@0x4cb221b0[recursive]
    at java/net/PlainDatagramSocketImpl.receive(PlainDatagramSocketImpl.java:136)[inlined]
    at java/net/DatagramSocket.receive(DatagramSocket.java:712)[optimized]
    ^-- Holding lock: java/net/PlainDatagramSocketImpl@0x4cb221b0[thin lock]
    ^-- Holding lock: java/net/DatagramPacket@0x73e59890[thin lock]
    ^-- Holding lock: java/net/MulticastSocket@0x4cb22178[thin lock]
    at com/tangosol/coherence/component/net/socket/UdpSocket.receive(UdpSocket.CDB:20)[optimized]
    at com/tangosol/coherence/component/net/UdpPacket.receive(UdpPacket.CDB:4)[optimized]
    at com/tangosol/coherence/component/util/daemon/queueProcessor/packetProcessor/PacketListener.onNotify(PacketListener.CDB:19)
    at com/tangosol/coherence/component/util/Daemon.run(Daemon.CDB:37)
    at java/lang/Thread.run(Thread.java:619)
    at jrockit/vm/RNI.c2java(JJJJJ)V(Native Method)
    -- end of trace
    "Cluster|Member(Id=2, Timestamp=2011-02-23 16:25:36.488, Address=10.10.100.77:8095, MachineId=25677, Location=site:emtzzzz.com,machine:njdev04,process:18142,member:cldev201~carboncachelauncher~181)" id=19 idx=0x50 tid=18164 prio=5 alive, in native, waiting, daemon
    -- Waiting for notification on: com/tangosol/coherence/component/util/queue/concurrentQueue/DualQueue@0x4cac64d8[fat lock]
    at jrockit/vm/Threads.waitForNotifySignal(JLjava/lang/Object;)Z(Native Method)
    at java/lang/Object.wait(J)V(Native Method)[optimized]
    at com/tangosol/coherence/component/util/Daemon.onWait(Daemon.CDB:18)[inlined]
    at com/tangosol/coherence/component/util/daemon/queueProcessor/service/Grid.onWait(Grid.CDB:9)[optimized]
    ^-- Lock released while waiting: com/tangosol/coherence/component/util/queue/concurrentQueue/DualQueue@0x4cac64d8[fat lock]
    at com/tangosol/coherence/component/util/Daemon.run(Daemon.CDB:34)
    at java/lang/Thread.run(Thread.java:619)
    at jrockit/vm/RNI.c2java(JJJJJ)V(Native Method)
    -- end of trace
    "TcpRingListener" id=20 idx=0x54 tid=18165 prio=6 alive, in native, daemon
    at java/net/PlainSocketImpl.socketAccept(Ljava/net/SocketImpl;)V(Native Method)
    at java/net/PlainSocketImpl.accept(PlainSocketImpl.java:384)
    ^-- Holding lock: java/net/SocksSocketImpl@0x4cb227d8[thin lock]
    at java/net/ServerSocket.implAccept(ServerSocket.java:453)
    at java/net/ServerSocket.accept(ServerSocket.java:421)
    at com/tangosol/coherence/component/net/socket/TcpSocketAccepter.accept(TcpSocketAccepter.CDB:18)
    at com/tangosol/coherence/component/util/daemon/TcpRingListener.acceptConnection(TcpRingListener.CDB:10)
    at com/tangosol/coherence/component/util/daemon/TcpRingListener.onNotify(TcpRingListener.CDB:9)
    at com/tangosol/coherence/component/util/Daemon.run(Daemon.CDB:37)
    at java/lang/Thread.run(Thread.java:619)
    at jrockit/vm/RNI.c2java(JJJJJ)V(Native Method)
    -- end of trace
    "Invocation:Management:EventDispatcher" id=22 idx=0x58 tid=18166 prio=5 alive, in native, waiting, daemon
    -- Waiting for notification on: com/tangosol/coherence/component/util/daemon/queueProcessor/Service$EventDispatcher$Queue@0x4ab76140[fat lock]
    at jrockit/vm/Threads.waitForNotifySignal(JLjava/lang/Object;)Z(Native Method)
    at java/lang/Object.wait(J)V(Native Method)[optimized]
    at com/tangosol/coherence/component/util/Daemon.onWait(Daemon.CDB:18)[optimized]
    ^-- Lock released while waiting: com/tangosol/coherence/component/util/daemon/queueProcessor/Service$EventDispatcher$Queue@0x4ab76140[fat lock]
    at com/tangosol/coherence/component/util/daemon/queueProcessor/Service$EventDispatcher.onWait(Service.CDB:7)
    at com/tangosol/coherence/component/util/Daemon.run(Daemon.CDB:34)
    at java/lang/Thread.run(Thread.java:619)
    at jrockit/vm/RNI.c2java(JJJJJ)V(Native Method)
    -- end of trace
    "Invocation:Management" id=23 idx=0x5c tid=18167 prio=5 alive, in native, waiting, daemon
    -- Waiting for notification on: com/tangosol/coherence/component/util/queue/concurrentQueue/DualQueue@0x4ab75508[fat lock]
    at jrockit/vm/Threads.waitForNotifySignal(JLjava/lang/Object;)Z(Native Method)
    at java/lang/Object.wait(J)V(Native Method)[optimized]
    at com/tangosol/coherence/component/util/Daemon.onWait(Daemon.CDB:18)[inlined]
    at com/tangosol/coherence/component/util/daemon/queueProcessor/service/Grid.onWait(Grid.CDB:9)[optimized]
    ^-- Lock released while waiting: com/tangosol/coherence/component/util/queue/concurrentQueue/DualQueue@0x4ab75508[fat lock]
    at com/tangosol/coherence/component/util/Daemon.run(Daemon.CDB:34)
    at java/lang/Thread.run(Thread.java:619)
    at jrockit/vm/RNI.c2java(JJJJJ)V(Native Method)
    -- end of trace
    "DistributedCache" id=25 idx=0x60 tid=18168 prio=5 alive, in native, waiting, daemon
    -- Waiting for notification on: com/tangosol/coherence/component/util/queue/concurrentQueue/DualQueue@0x4a3869b0[fat lock]
    at jrockit/vm/Threads.waitForNotifySignal(JLjava/lang/Object;)Z(Native Method)
    at java/lang/Object.wait(J)V(Native Method)[optimized]
    at com/tangosol/coherence/component/util/Daemon.onWait(Daemon.CDB:18)[inlined]
    at com/tangosol/coherence/component/util/daemon/queueProcessor/service/Grid.onWait(Grid.CDB:9)[optimized]
    ^-- Lock released while waiting: com/tangosol/coherence/component/util/queue/concurrentQueue/DualQueue@0x4a3869b0[fat lock]
    at com/tangosol/coherence/component/util/Daemon.run(Daemon.CDB:34)
    at java/lang/Thread.run(Thread.java:619)
    at jrockit/vm/RNI.c2java(JJJJJ)V(Native Method)
    -- end of trace
    ===== END OF THREAD DUMP ===============
    Thread Dump 2 -
    ===== FULL THREAD DUMP ===============
    Thu Feb 24 21:27:53 2011
    BEA JRockit(R) R27.6.3-40_o-112056-1.6.0_11-20090318-2103-linux-x86_64
    "Main Thread" id=1 idx=0x4 tid=18143 prio=5 alive, in native, waiting
    -- Waiting for notification on: java/lang/Class@0x43587b58[fat lock]
    at jrockit/vm/Threads.waitForNotifySignal(JLjava/lang/Object;)Z(Native Method)
    at java/lang/Object.wait(J)V(Native Method)[optimized]
    at com/tangosol/net/DefaultCacheServer.main(DefaultCacheServer.java:80)
    ^-- Lock released while waiting: java/lang/Class@0x43587b58[fat lock]
    at com/zzzz/carbon/cacheserver/ZzzzCoherenceServerStartup.doWork(ZzzzCoherenceServerStartup.java:29)
    at com/zzzz/util/runner/ZzzzRunnerBase.run(ZzzzRunnerBase.java:23)
    at com/zzzz/carbon/cacheserver/ZzzzCoherenceServerStartup.main(ZzzzCoherenceServerStartup.java:16)
    at jrockit/vm/RNI.c2java(JJJJJ)V(Native Method)
    -- end of trace
    "(Signal Handler)" id=2 idx=0x8 tid=18144 prio=5 alive, in native, daemon
    "(GC Main Thread)" id=3 idx=0xc tid=18145 prio=5 alive, in native, native_waiting, daemon
    "(GC Worker Thread 1)" id=? idx=0x10 tid=18146 prio=5 alive, in native, daemon
    "(GC Worker Thread 2)" id=? idx=0x14 tid=18147 prio=5 alive, in native, daemon
    "(GC Worker Thread 3)" id=? idx=0x18 tid=18148 prio=5 alive, in native, daemon
    "(GC Worker Thread 4)" id=? idx=0x1c tid=18149 prio=5 alive, in native, daemon
    "(Code Generation Thread 1)" id=4 idx=0x20 tid=18150 prio=5 alive, in native, native_waiting, daemon
    "(Code Optimization Thread 1)" id=5 idx=0x24 tid=18151 prio=5 alive, in native, native_waiting, daemon
    "(VM Periodic Task)" id=6 idx=0x28 tid=18152 prio=10 alive, in native, daemon
    "Finalizer" id=7 idx=0x2c tid=18153 prio=8 alive, in native, native_waiting, daemon
    at jrockit/memory/Finalizer.waitForFinalizees([Ljava/lang/Object;)I(Native Method)
        at jrockit/memory/Finalizer.access$500(Finalizer.java:12)
        at jrockit/memory/Finalizer$4.run(Finalizer.java:159)
        at java/lang/Thread.run(Thread.java:619)
        at jrockit/vm/RNI.c2java(JJJJJ)V(Native Method)
        -- end of trace
    "Reference Handler" id=8 idx=0x30 tid=18154 prio=10 alive, in native, native_waiting, daemon
        at java/lang/ref/Reference.waitForActivatedQueue()Ljava/lang/ref/Reference;(Native Method)
        at java/lang/ref/Reference.access$100(Reference.java:11)
        at java/lang/ref/Reference$ReferenceHandler.run(Reference.java:79)
        at jrockit/vm/RNI.c2java(JJJJJ)V(Native Method)
        -- end of trace
    "(Sensor Event Thread)" id=9 idx=0x34 tid=18155 prio=5 alive, in native, daemon
    "Logger@9217551 3.5/459" id=12 idx=0x38 tid=18158 prio=3 alive, in native, waiting, daemon
        -- Waiting for notification on: com/tangosol/coherence/component/application/console/Coherence$Logger$Queue@0x4e1faef8[fat lock]
    at jrockit/vm/Threads.waitForNotifySignal(JLjava/lang/Object;)Z(Native Method)
    at java/lang/Object.wait(J)V(Native Method)[optimized]
    at com/tangosol/coherence/component/util/Daemon.onWait(Daemon.CDB:18)[optimized]
    ^-- Lock released while waiting: com/tangosol/coherence/component/application/console/Coherence$Logger$Queue@0x4e1faef8[fat lock]
    at com/tangosol/coherence/component/util/Daemon.run(Daemon.CDB:34)
    at java/lang/Thread.run(Thread.java:619)
    at jrockit/vm/RNI.c2java(JJJJJ)V(Native Method)
    -- end of trace
    "PacketListener1" id=14 idx=0x3c tid=18159 prio=8 alive, in native, daemon
    at java/net/PlainDatagramSocketImpl.receive0(Ljava/net/DatagramPacket;)V(Native Method)
    ^-- Holding lock: java/net/PlainDatagramSocketImpl@0x4cb21360[recursive]
    at java/net/PlainDatagramSocketImpl.receive(PlainDatagramSocketImpl.java:136)[inlined]
    at java/net/DatagramSocket.receive(DatagramSocket.java:712)[optimized]
    ^-- Holding lock: java/net/PlainDatagramSocketImpl@0x4cb21360[thin lock]
    ^-- Holding lock: java/net/DatagramPacket@0x73a80930[thin lock]
    ^-- Holding lock: java/net/DatagramSocket@0x4cb21338[thin lock]
    at com/tangosol/coherence/component/net/socket/UdpSocket.receive(UdpSocket.CDB:20)[optimized]
    at com/tangosol/coherence/component/net/UdpPacket.receive(UdpPacket.CDB:4)[optimized]
    at com/tangosol/coherence/component/util/daemon/queueProcessor/packetProcessor/PacketListener.onNotify(PacketListener.CDB:19)
    at com/tangosol/coherence/component/util/Daemon.run(Daemon.CDB:37)
    at java/lang/Thread.run(Thread.java:619)
    at jrockit/vm/RNI.c2java(JJJJJ)V(Native Method)
    -- end of trace
    "PacketReceiver" id=15 idx=0x40 tid=18160 prio=7 alive, in native, waiting, daemon
    -- Waiting for notification on: com/tangosol/coherence/component/net/Cluster$PacketReceiver$InQueue@0x4cf60d58[fat lock]
    at jrockit/vm/Threads.waitForNotifySignal(JLjava/lang/Object;)Z(Native Method)
    at java/lang/Object.wait(J)V(Native Method)[optimized]
    at com/tangosol/coherence/component/util/Daemon.onWait(Daemon.CDB:18)[inlined]
    at com/tangosol/coherence/component/util/daemon/queueProcessor/packetProcessor/PacketReceiver.onWait(PacketReceiver.CDB:2)[optimized]
    ^-- Lock released while waiting: com/tangosol/coherence/component/net/Cluster$PacketReceiver$InQueue@0x4cf60d58[fat lock]
    at com/tangosol/coherence/component/util/Daemon.run(Daemon.CDB:34)
    at java/lang/Thread.run(Thread.java:619)
    at jrockit/vm/RNI.c2java(JJJJJ)V(Native Method)
    -- end of trace
    "PacketPublisher" id=16 idx=0x44 tid=18161 prio=6 alive, in native, waiting, daemon
    -- Waiting for notification on: com/tangosol/coherence/component/net/Cluster$PacketPublisher$InQueue@0x4ca053a8[fat lock]
    at jrockit/vm/Threads.waitForNotifySignal(JLjava/lang/Object;)Z(Native Method)
    at java/lang/Object.wait(J)V(Native Method)[optimized]
    at com/tangosol/coherence/component/util/Daemon.onWait(Daemon.CDB:18)[inlined]
    at com/tangosol/coherence/component/util/daemon/queueProcessor/packetProcessor/PacketPublisher.onWait(PacketPublisher.CDB:2)[optimized]
    ^-- Lock released while waiting: com/tangosol/coherence/component/net/Cluster$PacketPublisher$InQueue@0x4ca053a8[fat lock]
    ^-- Lock released while waiting: com/tangosol/coherence/component/net/Cluster$PacketPublisher$InQueue@0x4ca053a8[fat lock]
    at com/tangosol/coherence/component/util/Daemon.run(Daemon.CDB:34)
    at java/lang/Thread.run(Thread.java:619)
    at jrockit/vm/RNI.c2java(JJJJJ)V(Native Method)
    -- end of trace
    "PacketSpeaker" id=17 idx=0x48 tid=18162 prio=8 alive, in native, waiting, daemon
    -- Waiting for notification on: com/tangosol/coherence/component/net/Cluster$PacketSpeaker$BundlingQueue@0x4cabe9d8[fat lock]
    at jrockit/vm/Threads.waitForNotifySignal(JLjava/lang/Object;)Z(Native Method)
    at java/lang/Object.wait(J)V(Native Method)[optimized]
    at com/tangosol/coherence/component/util/queue/ConcurrentQueue.waitForEntry(ConcurrentQueue.CDB:16)
    ^-- Lock released while waiting: com/tangosol/coherence/component/net/Cluster$PacketSpeaker$BundlingQueue@0x4cabe9d8[fat lock]
    at com/tangosol/coherence/component/util/queue/ConcurrentQueue.remove(ConcurrentQueue.CDB:7)
    at com/tangosol/coherence/component/util/Queue.remove(Queue.CDB:1)
    at com/tangosol/coherence/component/util/daemon/queueProcessor/packetProcessor/PacketSpeaker.onNotify(PacketSpeaker.CDB:62)
    at com/tangosol/coherence/component/util/Daemon.run(Daemon.CDB:37)
    at java/lang/Thread.run(Thread.java:619)
    at jrockit/vm/RNI.c2java(JJJJJ)V(Native Method)
    -- end of trace
    "PacketListenerN" id=18 idx=0x4c tid=18163 prio=8 alive, in native, daemon
    at java/net/PlainDatagramSocketImpl.receive0(Ljava/net/DatagramPacket;)V(Native Method)
    ^-- Holding lock: java/net/PlainDatagramSocketImpl@0x4cb221b0[recursive]
    at java/net/PlainDatagramSocketImpl.receive(PlainDatagramSocketImpl.java:136)[inlined]
    at java/net/DatagramSocket.receive(DatagramSocket.java:712)[optimized]
    ^-- Holding lock: java/net/PlainDatagramSocketImpl@0x4cb221b0[thin lock]
    ^-- Holding lock: java/net/DatagramPacket@0x5e55a240[thin lock]
    ^-- Holding lock: java/net/MulticastSocket@0x4cb22178[thin lock]
    at com/tangosol/coherence/component/net/socket/UdpSocket.receive(UdpSocket.CDB:20)[optimized]
    at com/tangosol/coherence/component/net/UdpPacket.receive(UdpPacket.CDB:4)[optimized]
    at com/tangosol/coherence/component/util/daemon/queueProcessor/packetProcessor/PacketListener.onNotify(PacketListener.CDB:19)
    at com/tangosol/coherence/component/util/Daemon.run(Daemon.CDB:37)
    at java/lang/Thread.run(Thread.java:619)
    at jrockit/vm/RNI.c2java(JJJJJ)V(Native Method)
    -- end of trace
    "Cluster|Member(Id=2, Timestamp=2011-02-23 16:25:36.488, Address=10.10.100.77:8095, MachineId=25677, Location=site:emtzzzz.com,machine:njdev04,process:18142,member:cldev201~carboncachelauncher~181)" id=19 idx=0x50 tid=18164 prio=5 alive, in native, waiting, daemon
    -- Waiting for notification on: com/tangosol/coherence/component/util/queue/concurrentQueue/DualQueue@0x4cac64d8[fat lock]
    at jrockit/vm/Threads.waitForNotifySignal(JLjava/lang/Object;)Z(Native Method)
    at java/lang/Object.wait(J)V(Native Method)[optimized]
    at com/tangosol/coherence/component/util/Daemon.onWait(Daemon.CDB:18)[inlined]
    at com/tangosol/coherence/component/util/daemon/queueProcessor/service/Grid.onWait(Grid.CDB:9)[optimized]
    ^-- Lock released while waiting: com/tangosol/coherence/component/util/queue/concurrentQueue/DualQueue@0x4cac64d8[fat lock]
    at com/tangosol/coherence/component/util/Daemon.run(Daemon.CDB:34)
    at java/lang/Thread.run(Thread.java:619)
    at jrockit/vm/RNI.c2java(JJJJJ)V(Native Method)
    -- end of trace
    "TcpRingListener" id=20 idx=0x54 tid=18165 prio=6 alive, in native, daemon
    at java/net/PlainSocketImpl.socketAccept(Ljava/net/SocketImpl;)V(Native Method)
    at java/net/PlainSocketImpl.accept(PlainSocketImpl.java:384)
    ^-- Holding lock: java/net/SocksSocketImpl@0x4cb227d8[thin lock]
    at java/net/ServerSocket.implAccept(ServerSocket.java:453)
    at java/net/ServerSocket.accept(ServerSocket.java:421)
    at com/tangosol/coherence/component/net/socket/TcpSocketAccepter.accept(TcpSocketAccepter.CDB:18)
    at com/tangosol/coherence/component/util/daemon/TcpRingListener.acceptConnection(TcpRingListener.CDB:10)
    at com/tangosol/coherence/component/util/daemon/TcpRingListener.onNotify(TcpRingListener.CDB:9)
    at com/tangosol/coherence/component/util/Daemon.run(Daemon.CDB:37)
    at java/lang/Thread.run(Thread.java:619)
    at jrockit/vm/RNI.c2java(JJJJJ)V(Native Method)
    -- end of trace
    "Invocation:Management:EventDispatcher" id=22 idx=0x58 tid=18166 prio=5 alive, in native, waiting, daemon
    -- Waiting for notification on: com/tangosol/coherence/component/util/daemon/queueProcessor/Service$EventDispatcher$Queue@0x4ab76140[fat lock]
    at jrockit/vm/Threads.waitForNotifySignal(JLjava/lang/Object;)Z(Native Method)
    at java/lang/Object.wait(J)V(Native Method)[optimized]
    at com/tangosol/coherence/component/util/Daemon.onWait(Daemon.CDB:18)[optimized]
    ^-- Lock released while waiting: com/tangosol/coherence/component/util/daemon/queueProcessor/Service$EventDispatcher$Queue@0x4ab76140[fat lock]
    at com/tangosol/coherence/component/util/daemon/queueProcessor/Service$EventDispatcher.onWait(Service.CDB:7)
    at com/tangosol/coherence/component/util/Daemon.run(Daemon.CDB:34)
    at java/lang/Thread.run(Thread.java:619)
    at jrockit/vm/RNI.c2java(JJJJJ)V(Native Method)
    -- end of trace
    "Invocation:Management" id=23 idx=0x5c tid=18167 prio=5 alive, in native, waiting, daemon
    -- Waiting for notification on: com/tangosol/coherence/component/util/queue/concurrentQueue/DualQueue@0x4ab75508[fat lock]
    at jrockit/vm/Threads.waitForNotifySignal(JLjava/lang/Object;)Z(Native Method)
    at java/lang/Object.wait(J)V(Native Method)[optimized]
    at com/tangosol/coherence/component/util/Daemon.onWait(Daemon.CDB:18)[inlined]
    at com/tangosol/coherence/component/util/daemon/queueProcessor/service/Grid.onWait(Grid.CDB:9)[optimized]
    ^-- Lock released while waiting: com/tangosol/coherence/component/util/queue/concurrentQueue/DualQueue@0x4ab75508[fat lock]
    at com/tangosol/coherence/component/util/Daemon.run(Daemon.CDB:34)
    at java/lang/Thread.run(Thread.java:619)
    at jrockit/vm/RNI.c2java(JJJJJ)V(Native Method)
    -- end of trace
    "DistributedCache" id=25 idx=0x60 tid=18168 prio=5 alive, in native, waiting, daemon
    -- Waiting for notification on: com/tangosol/coherence/component/util/queue/concurrentQueue/DualQueue@0x4a3869b0[fat lock]
    at jrockit/vm/Threads.waitForNotifySignal(JLjava/lang/Object;)Z(Native Method)
    at java/lang/Object.wait(J)V(Native Method)[optimized]
    at com/tangosol/coherence/component/util/Daemon.onWait(Daemon.CDB:18)[inlined]
    at com/tangosol/coherence/component/util/daemon/queueProcessor/service/Grid.onWait(Grid.CDB:9)[optimized]
    ^-- Lock released while waiting: com/tangosol/coherence/component/util/queue/concurrentQueue/DualQueue@0x4a3869b0[fat lock]
    at com/tangosol/coherence/component/util/Daemon.run(Daemon.CDB:34)
    at java/lang/Thread.run(Thread.java:619)
    at jrockit/vm/RNI.c2java(JJJJJ)V(Native Method)
    -- end of trace
    ===== END OF THREAD DUMP ===============

    Charlie, Cameron,
    Thanks for following up. To answer Cameron's question - yes, running top shows that it is this process using a significant amount of the CPU. I captured a JRA this morning setting nativesamples=true.
    I see the following when I look at the Hot Methods - let me know if there is something else that would shed some more light on this issue.
    Method     Percent(%)     #Samples     Optimized     Native     Method Id.
    libjvm.so#mmDetGcFollowReferencesWorkers     28.575     2,062     0     1     0x2AE6B82EC2C1
    libpthread.so.0#__recvfrom_nocancel     26.012     1,877     0     1     0x3CC1A0D689
    libpthread.so.0#__accept_nocancel     26.012     1,877     0     1     0x3CC1A0D4A9
    libjvm.so#mmBalanceGetReference     4.975     359     0     1     0x2AE6B817A65B
    libjvm.so#objIterStepFieldFromBitmaskWord     4.753     343     0     1     0x2AE6B82A6B34
    libjvm.so#objIterStep     3.88     280     0     1     0x2AE6B82A6F8D
    libjvm.so#objIterInitInner     2.744     198     0     1     0x2AE6B82A71B7
    libjvm.so#mmBalanceStoreReference     1.414     102     0     1     0x2AE6B817A781
    libjvm.so#objIterSetupFields     0.637     46     0     1     0x2AE6B82A6B08
    libjvm.so#nativeInnerLockNotLinked     0.236     17     0     1     0x2AE6B829DE76
    libjvm.so#mmWorkPacketPoolGet     0.125     9     0     1     0x2AE6B817A4F5
    libjvm.so#qBitSetIsBitSetInWord     0.069     5     0     1     0x2AE6B82C8AA6
    libjvm.so#nativeInnerUnlockNotLinked     0.069     5     0     1     0x2AE6B829E028
    libjvm.so#mmWorkPacketPoolAdd     0.042     3     0     1     0x2AE6B817A48E
    libjvm.so#objPoolMarkAllHard     0.042     3     0     1     0x2AE6B82A4923
    libjvm.so#objIterSetupArray     0.028     2     0     1     0x2AE6B82A6BDB
    libjvm.so#markAcquired     0.028     2     0     1     0x2AE6B829DBD3
    libjvm.so#mmPointerMatrixTryInsertAtIndex     0.028     2     0     1     0x2AE6B82BEFEB
    libjvm.so#mmPointerMatrixClear     0.028     2     0     1     0x2AE6B82BF61C
    libjvm.so#objPoolMarkWeakConcurrently     0.028     2     0     1     0x2AE6B82A5358
    libjvm.so#qBitSetFindFirstNonClearedWord     0.014     1     0     1     0x2AE6B82C888E
    libjvm.so#utilCounterToNanos     0.014     1     0     1     0x2AE6B8313B53
    libjvm.so#waitForLockIfNeededAndMarkAcquired     0.014     1     0     1     0x2AE6B829DC30
    libjvm.so#vmtLinkData     0.014     1     0     1     0x2AE6B8325B2E
    libjvm.so#mmBitsIsObjectMarkedGrey     0.014     1     0     1     0x2AE6B82ED7E9
    libjvm.so#qBitSetFindLastSetBitInWord     0.014     1     0     1     0x2AE6B82C8854
    libjvm.so#mark_writebarriers     0.014     1     0     1     0x2AE6B8250EEA
    libjvm.so#signalNextInLockQueueIfNeeded     0.014     1     0     1     0x2AE6B829DF52
    libjvm.so#mmGetUsingMatrixes     0.014     1     0     1     0x2AE6B819F33C
    libjvm.so#ptGetThreadId     0.014     1     0     1     0x2AE6B82BD9ED
    libc.so.6#memset     0.014     1     0     1     0x3CC0A7A000
    libjvm.so#setupNodeForSelf     0.014     1     0     1     0x2AE6B829DD87
    libc.so.6#_int_free     0.014     1     0     1     0x3CC0A714E0
    libjvm.so#mmAddChunkToList     0.014     1     0     1     0x2AE6B830977C
    libjvm.so#vmtiUnlinkData     0.014     1     0     1     0x2AE6B8325B4A
    libjvm.so#nativeLockInSuspendCritical     0.014     1     0     1     0x2AE6B829E0E3
    libjvm.so#mmSweepHeapPart     0.014     1     0     1     0x2AE6B830989A
    libjvm.so#mmBalanceWorkSetSwapPackets     0.014     1     0     1     0x2AE6B817A647
    libc.so.6#_int_malloc     0.014     1     0     1     0x3CC0A71E80
    libjvm.so#charToJlcType     0.014     1     0     1     0x2AE6B8253633
    unknown#unknown functions     0     0     0     1     0x2AE6B8597090
    Running with nativemethods=false, I see the following under hot methods
    Method     Percent(%)     #Samples     Optimized     Native     Method Id.
    jrockit.vm.Locks.monitorExitSecondStage(Object)     50     1     1     0     0x161D30D0
    com.tangosol.coherence.component.util.daemon.queueProcessor.service.grid.ClusterService.onNotify()     50     1     1     0     0x169D2C70
    com.tangosol.coherence.component.util.daemon.queueProcessor.packetProcessor.PacketReceiver.onNotify()     0     0     1     0     0x1551C050
    com.tangosol.coherence.component.util.queue.ConcurrentQueue.checkFlush(int)     0     0     1     0     0x151C2180
    java.lang.Thread.run()     0     0     0     0     0x14E98EB0
    jrockit.vm.RNI.c2java(long, long, long, long, long)     0     0     0     0     0x14C07830
    unknown#unknown functions     0     0     0     1     0x2AE6B8597090
    com.tangosol.coherence.component.util.Daemon.run()     0     0     0     0     0x15CFEBC0
    com.tangosol.coherence.component.util.queue.ConcurrentQueue.add(Object)     0     0     1     0     0x15ED6B00
    com.tangosol.coherence.component.util.queue.ConcurrentQueue.onAddElement()     0     0     1     0     0x151C9C20
    com.tangosol.coherence.component.util.queue.ConcurrentQueue.flush(boolean)     0     0     1     0     0x1618CAD0
    Thanks,
    Jason

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