Hi, Its still the same issue in 5.0 by the looks of things: http://www.nabble.com/file/p14418496/AMQ5.0_dump.html AMQ5.0_dump.html
100% is being spent in readInt() Would you expect alot of time to be spent in this method in the first place or is this completely unexpected? Has you/anyone ever seen seen this before? Its always the case on my RCP application so it tried to reproduce it with simple MDP consumer using spring. In this simple test, I was sending 1 message every second and when receiving it with MDP, I had an empty for loop 1 million times to try to chew up CPU. On reading the profile, AMQ was still 93% of the application. This may not be so b Does anyone know what to try from here? Thanks /Tom rajdavies wrote: > > This looks like it might be a bug - but ActiveMQ 5.0 is now available > - please give it a try ;) > On Dec 19, 2007, at 10:57 AM, TOPPER_HARLEY wrote: > >> >> Hi, >> Im running an eclipse RCP application that uses AMQ4.1.1 for >> receiving data >> from temp queues(request/response) and topics (for updates). We are >> having >> trouble with CPU on client side and from using YourKit profiler to >> monitor >> this over about 16 hours I see that AMQ is 100% of the time. >> According to >> the snapshot attached, my methods are completely negligible. Here is >> a quick >> snippet: >> >> <All threads> >> 318,332,979 java.lang.Thread.run() 100 % >> 318,003,121 org.apache.activemq.transport.tcp.TcpTransport.run() >> 100 % >> 317,369,872 >> org.apache.activemq.transport.tcp.TcpTransport.readCommand() 100 % >> 317,369,747 >> org.apache.activemq.openwire.OpenWireFormat.unmarshal(DataInput) 100 % >> 317,369,747 java.io.DataInputStream.readInt() 100% >> >> Generated by YourKit Java Profiler 7.1 EAP build 3004 19-Dec-2007 >> 10:19:15 >> >> This seems strange since its an RCP application with glazed lists >> etc. I >> would have thought that my methods (or at least eclipse/glazed lists >> would >> be chewing up the CPU). But from this it seems to be AMQ. >> >> Does anyone have any thoughts on this or am I reading this data >> incorrectly? >> >> Thanks for any input >> >> /Tom >> >> >> http://www.nabble.com/file/p14414902/client_dump.html client_dump.html >> >> >> -- >> View this message in context: >> http://www.nabble.com/AMQ-100--of-CPU-in-RCP-application-tp14414902s2354p14414902.html >> Sent from the ActiveMQ - User mailing list archive at Nabble.com. >> > > > -- View this message in context: http://www.nabble.com/AMQ-100--of-CPU-in-RCP-application-tp14414902s2354p14418496.html Sent from the ActiveMQ - User mailing list archive at Nabble.com.
