Desktop Window Manager high CPU utilization

I have several Windows 2012 servers that are showing high CPU utilization (70% or higher) coming from the Desktop Window Manager. I do not have the Desktop Experience feature installed on these machines. The interesting thing is that the process
for dwm.exe does not show up as a service that I can stop or restart. I've read through the various posts about re-registering dmw.exe so that the service shows up again, but nothing has worked. Since these are application and file servers with
no need for regular desktop use, I don't really need any fancy desktop graphics or performance. I have the Advanced Performance Options set to 'Background services'. Can anyone tell me how to stop dwm.exe or at least reduce it's CPU footprint?
Thanks,
Joe

Hi Joe,
Based on my research, On Windows 8 and Windows Server 2012, DWM is used at all times and cannot be disabled.
For more detailed information, please refer to this article:
Desktop Window Manager is always on:
To troubleshoot the high usage of CPU, I would like to recommend to follow this article to collect and analyse the relevant log files and dump files:
Troubleshooting High CPU performance issues - Part 1
If you want to analyse the dump file, I also recommend you can open case and contact Microsoft support.
I hope this helps.

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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. ”

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All,
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Anti-virus exclusion list/exceptions properly configured on the affected Lync Mediation Servers? Using dynamic instead of fixed-size virtual disks? Is the host hypervisor on the official supported list (see
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Very high cpu utilization with mq broker

Hi all,
I see a very high cpu utilization (400% on 8 cpu server) when I connect consumers to OpenQ. It increase close to 100% for every consumer I add. Slowly, the consumer comes to a halt, as the producers are sending messages at a good rate too.
Environment Setup
Glassfish version 2.1
com.sun.messaging.jmq Version Information Product Compatibility Version: 4.3 Protocol Version: 4.3 Target JMS API Version: 1.1
Cluster set up using persistent storage. snippet from broker log.
Java Runtime: 1.6.0_14 Sun Microsystems Inc. /home/user/foundation/jdk-1.6/jre [06/Apr/2011:12:48:44 EDT] IMQ_HOME=/home/user/foundation/sges/imq [06/Apr/2011:12:48:44 EDT] IMQ_VARHOME=/home/user/foundation/installation/node-agent-server1/server1/imq [06/Apr/2011:12:48:44 EDT] Linux 2.6.18-164.10.1.el5xen i386 server1 (8 cpu) user [06/Apr/2011:12:48:44 EDT] Java Heap Size: max=394432k, current=193920k [06/Apr/2011:12:48:44 EDT] Arguments: -javahome /home/user/foundation/jdk-1.6 -Dimq.autocreate.queue=false -Dimq.autocreate.topic=false -Dimq.cluster.masterbroker=mq://server1:37676/ -Dimq.cluster.brokerlist=mq://server1:37676/,mq://server2:37676/ -Dimq.cluster.nowaitForMasterBroker=true -varhome /home/user/foundation/installation/node-agent-server1/server1/imq -startRmiRegistry -rmiRegistryPort 37776 -Dimq.imqcmd.user=admin -passfile /tmp/asmq5711749746025968663.tmp -save -name clusterservercom -port 37676 -bgnd -silent [06/Apr/2011:12:48:44 EDT] [B1004]: Starting the portmapper service using tcp [ 37676, 50, * ] with min threads 1 and max threads of 1 [06/Apr/2011:12:48:45 EDT] [B1060]: Loading persistent data...
I followed step in http://middlewaremagic.com/weblogic/?p=4884 to narrow it down to Threads that was causing high cpu. Both were around 94%.
Following is the stack for those threads.
"Thread-jms[224]" prio=10 tid=0xd635f400 nid=0x5665 runnable [0xd18fe000] java.lang.Thread.State: RUNNABLE at com.sun.messaging.jmq.jmsserver.data.TransactionList.isConsumedInTransaction(TransactionList.java:697) at com.sun.messaging.jmq.jmsserver.core.Session.detatchConsumer(Session.java:918) - locked <0xf3d35730> (a java.util.Collections$SynchronizedMap) at com.sun.messaging.jmq.jmsserver.core.Session.detatchConsumer(Session.java:810) at com.sun.messaging.jmq.jmsserver.data.handlers.ConsumerHandler.destroyConsumer(ConsumerHandler.java:577) at com.sun.messaging.jmq.jmsserver.data.handlers.ConsumerHandler.handle(ConsumerHandler.java:422) at com.sun.messaging.jmq.jmsserver.data.PacketRouter.handleMessage(PacketRouter.java:181) at com.sun.messaging.jmq.jmsserver.service.imq.IMQIPConnection.readData(IMQIPConnection.java:1489) at com.sun.messaging.jmq.jmsserver.service.imq.IMQIPConnection.process(IMQIPConnection.java:644) at com.sun.messaging.jmq.jmsserver.service.imq.OperationRunnable.process(OperationRunnable.java:170) at com.sun.messaging.jmq.jmsserver.util.pool.BasicRunnable.run(BasicRunnable.java:493) at java.lang.Thread.run(Thread.java:619) Locked ownable synchronizers: - None
"Thread-jms[214]" prio=10 tid=0xd56c8000 nid=0x566c waiting for monitor entry [0xd2838000] java.lang.Thread.State: BLOCKED (on object monitor) at com.sun.messaging.jmq.jmsserver.data.TransactionInformation.isConsumedMessage(TransactionList.java:2544) - locked <0xdbeeb538> (a com.sun.messaging.jmq.jmsserver.data.TransactionInformation) at com.sun.messaging.jmq.jmsserver.data.TransactionList.isConsumedInTransaction(TransactionList.java:697) at com.sun.messaging.jmq.jmsserver.core.Session.detatchConsumer(Session.java:918) - locked <0xe4c9abf0> (a java.util.Collections$SynchronizedMap) at com.sun.messaging.jmq.jmsserver.core.Session.detatchConsumer(Session.java:810) at com.sun.messaging.jmq.jmsserver.data.handlers.ConsumerHandler.destroyConsumer(ConsumerHandler.java:577) at com.sun.messaging.jmq.jmsserver.data.handlers.ConsumerHandler.handle(ConsumerHandler.java:422) at com.sun.messaging.jmq.jmsserver.data.PacketRouter.handleMessage(PacketRouter.java:181) at com.sun.messaging.jmq.jmsserver.service.imq.IMQIPConnection.readData(IMQIPConnection.java:1489) at com.sun.messaging.jmq.jmsserver.service.imq.IMQIPConnection.process(IMQIPConnection.java:644) at com.sun.messaging.jmq.jmsserver.service.imq.OperationRunnable.process(OperationRunnable.java:170) at com.sun.messaging.jmq.jmsserver.util.pool.BasicRunnable.run(BasicRunnable.java:493) at java.lang.Thread.run(Thread.java:619) Locked ownable synchronizers: - None
"Thread-jms[213]" prio=10 tid=0xd65be800 nid=0x5670 runnable [0xd1a28000] java.lang.Thread.State: RUNNABLE at com.sun.messaging.jmq.jmsserver.data.TransactionList.isConsumedInTransaction(TransactionList.java:697) at com.sun.messaging.jmq.jmsserver.core.Session.detatchConsumer(Session.java:918) - locked <0xe4c4bad8> (a java.util.Collections$SynchronizedMap) at com.sun.messaging.jmq.jmsserver.core.Session.detatchConsumer(Session.java:810) at com.sun.messaging.jmq.jmsserver.data.handlers.ConsumerHandler.destroyConsumer(ConsumerHandler.java:577) at com.sun.messaging.jmq.jmsserver.data.handlers.ConsumerHandler.handle(ConsumerHandler.java:422) at com.sun.messaging.jmq.jmsserver.data.PacketRouter.handleMessage(PacketRouter.java:181) at com.sun.messaging.jmq.jmsserver.service.imq.IMQIPConnection.readData(IMQIPConnection.java:1489) at com.sun.messaging.jmq.jmsserver.service.imq.IMQIPConnection.process(IMQIPConnection.java:644) at com.sun.messaging.jmq.jmsserver.service.imq.OperationRunnable.process(OperationRunnable.java:170) at com.sun.messaging.jmq.jmsserver.util.pool.BasicRunnable.run(BasicRunnable.java:493) at java.lang.Thread.run(Thread.java:619) Locked ownable synchronizers: - None
Any ideas will be appreciated.
--

Thanks ak, for the response.
Yes, the messages are consumed in transactions. I set imq.txn.reapLimit=200 in Start Arguments in jvm configuration.
I verified that it is being set in the log.txt file for the broker:
-Dimq.autocreate.queue=false -Dimq.autocreate.topic=false -Dimq.txn.reapLimit=250
It did not make any difference. Do I need to set this property somewhere else ?
As far as upgrading MQ is concerned, I am using glassfish 2.1. And I think MQ 4.3 is packaged with it. Can you suggest a safe way to upgrade to OpenMQ 4.5 in a running environment. I can bring down the cluster temporarily. Can I just change the jar file somwhere to use MQ4.5 ?
Here is the snippet of the consumer code :
I create Connection in @postConstruct and close it in @preDestroy, so that I don't have to do it everytime.
private ResultMessage[] doRetrieve(String username, String password, String jndiDestination, String filter, int maxMessages, long timeout, RetrieveType type)
throws InvalidCredentialsException, InvalidFilterException, ConsumerException {
// Resources
Session session = null;
try {
if (log.isTraceEnabled()) log.trace("Creating transacted session with JMS broker.");
session = connection.createSession(true, Session.SESSION_TRANSACTED);
// Locate bound destination and create consumer
if (log.isTraceEnabled()) log.trace("Searching for named destination: " + jndiDestination);
Destination destination = (Destination) ic.lookup(jndiDestination);
if (log.isTraceEnabled()) log.trace("Creating consumer for named destination " + jndiDestination);
MessageConsumer consumer = (filter == null || filter.trim().length() == 0) ? session.createConsumer(destination) : session.createConsumer(destination, filter);
if (log.isTraceEnabled()) log.trace("Starting JMS connection.");
connection.start();
// Consume messages
if (log.isDebugEnabled()) log.trace("Creating retrieval containers.");
List<ResultMessage> processedMessages = new ArrayList<ResultMessage>(maxMessages);
BytesMessage jmsMessage = null;
for (int i = 0 ; i < maxMessages ; i++) {
// Attempt message retrieve
if (log.isTraceEnabled()) log.trace("Attempting retrieval: " + i);
switch (type) {
case BLOCKING :
jmsMessage = (BytesMessage) consumer.receive();
break;
case IMMEDIATE :
jmsMessage = (BytesMessage) consumer.receiveNoWait();
break;
case TIMED :
jmsMessage = (BytesMessage) consumer.receive(timeout);
break;
// Process retrieved message
if (jmsMessage != null) {
if (log.isTraceEnabled()) log.trace("Message retrieved\n" + jmsMessage);
// Extract message
if (log.isTraceEnabled()) log.trace("Extracting result message container from JMS message.");
byte[] extracted = new byte[(int) jmsMessage.getBodyLength()];
jmsMessage.readBytes(extracted);
// Decompress message
if (jmsMessage.propertyExists(COMPRESSED_HEADER) && jmsMessage.getBooleanProperty(COMPRESSED_HEADER)) {
if (log.isTraceEnabled()) log.trace("Decompressing message.");
extracted = decompress(extracted);
// Done processing message
if (log.isTraceEnabled()) log.trace("Message added to retrieval container.");
String signature = jmsMessage.getStringProperty(DIGITAL_SIGNATURE);
processedMessages.add(new ResultMessage(extracted, signature));
} else
if (log.isTraceEnabled()) log.trace("No message was available.");
// Package return container
if (log.isTraceEnabled()) log.trace("Packing retrieved messages to return.");
ResultMessage[] collectorMessages = new ResultMessage[processedMessages.size()];
for (int i = 0 ; i < collectorMessages.length ; i++)
collectorMessages[i] = processedMessages.get(i);
if (log.isTraceEnabled()) log.trace("Returning " + collectorMessages.length + " messages.");
return collectorMessages;
} catch (NamingException ex) {
sessionContext.setRollbackOnly();
log.error("Unable to locate named queue: " + jndiDestination, ex);
throw new ConsumerException("Unable to locate named queue: " + jndiDestination, ex);
} catch (InvalidSelectorException ex) {
sessionContext.setRollbackOnly();
log.error("Invalid filter: " + filter, ex);
throw new InvalidFilterException("Invalid filter: " + filter, ex);
} catch (IOException ex) {
sessionContext.setRollbackOnly();
log.error("Message decompression failed.", ex);
throw new ConsumerException("Message decompression failed.", ex);
} catch (GeneralSecurityException ex) {
sessionContext.setRollbackOnly();
log.error("Message decryption failed.", ex);
throw new ConsumerException("Message decryption failed.", ex);
} catch (JMSException ex) {
sessionContext.setRollbackOnly();
log.error("Unable to consumer messages.", ex);
throw new ConsumerException("Unable to consume messages.", ex);
} catch (Throwable ex) {
sessionContext.setRollbackOnly();
log.error("Unexpected error.", ex);
throw new ConsumerException("Unexpected error.", ex);
} finally {
try {
if (session != null) session.close();
} catch (JMSException ex) {
log.error("Unexpected error.", ex);
Thanks for your help.
Edited by: vineet on Apr 7, 2011 10:06 AM

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Hi Daniel,
Yes, during the peak hours sometimes the CPU shoots even upto 95% and then in next 5 min comes down to normal below 70%.
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Regards,
Mohit

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Hi
I have a 2960 switch connected in my network. It is showing high CPU utilization upto 80-90%. When I checked I found that the below processes are taking the highest utilization. The image in the switch is LAN base. Can someone please advice on why I am having high utilization on the switch for the below processes and how can I reduce it.
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Duplicate post.
Go HERE.

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Dear team,
I want to find the tread causing high CPU utilization within the "jlaunch" process. As stated in SAP note: 743204. I ran the command "tps -a <pid> -a" in the development box and it it running fine. But the same command in the production portal is giving us the following error:
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Initialize measurement (10 sec) ...Memory fault(coredump)
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Hello,
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