Hi all, During a load teste we've noticed that JMeter was presenting a response time much bigger than the tested component. Taking some thread dumps we found that on a total of 200 threads, 170 were locked at some javascript object.
This was due to the usage of a JavaScript function in the body of the HTTP payload. Do we really have to use a shared object for javascript and then lock it causing this contention? Bellow, my thread dump: "Thread XXXX 1-200" prio=10 tid=0x00002aaab105e800 nid=0x34ec waiting for monitor entry [0x000000005a3ff000] java.lang.Thread.State: BLOCKED (on object monitor) at org.apache.jmeter.functions.JavaScript.execute(JavaScript.java:65) - waiting to lock <0x000000070158e538> (a org.apache.jmeter.functions.JavaScript) at org.apache.jmeter.engine.util.CompoundVariable.execute(CompoundVariable.java:146) at org.apache.jmeter.engine.util.CompoundVariable.execute(CompoundVariable.java:120) at org.apache.jmeter.testelement.property.FunctionProperty.getStringValue(FunctionProperty.java:101) at org.apache.jmeter.testelement.AbstractTestElement.getPropertyAsString(AbstractTestElement.java:274) at org.apache.jmeter.config.Argument.getValue(Argument.java:146) at org.apache.jmeter.protocol.http.util.HTTPArgument.getEncodedValue(HTTPArgument.java:199) at org.apache.jmeter.protocol.http.sampler.HTTPHC4Impl.sendEntityData(HTTPHC4Impl.java:1168) at org.apache.jmeter.protocol.http.sampler.HTTPHC4Impl.handleMethod(HTTPHC4Impl.java:422) at org.apache.jmeter.protocol.http.sampler.HTTPHC4Impl.sample(HTTPHC4Impl.java:296) at org.apache.jmeter.protocol.http.sampler.HTTPSamplerProxy.sample(HTTPSamplerProxy.java:74) at org.apache.jmeter.protocol.http.sampler.HTTPSamplerBase.sample(HTTPSamplerBase.java:1105) at org.apache.jmeter.protocol.http.sampler.HTTPSamplerBase.sample(HTTPSamplerBase.java:1094) at org.apache.jmeter.threads.JMeterThread.process_sampler(JMeterThread.java:429) at org.apache.jmeter.threads.JMeterThread.run(JMeterThread.java:257) at java.lang.Thread.run(Thread.java:745) Thanks, Daniel
