Page History

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• Tomcat 6.0.24
• Tomcat JVM -Xms256m -Xmx1024m
• JMeter JVM -Xmx512m
• Set session timeout in web.xml to 1min
• java version "1.6.0_29"
• Java(TM) SE Runtime Environment (build 1.6.0_29-b11-402-10M3527)
• Java HotSpot(TM) 64-Bit Server VM (build 20.4-b02-402, mixed mode)
• Mac OS 10.6.8
• JMeter and Tomcat on same machine
• No particular OS Tuning
• 8GO RAM machine
• No swap
• Simple Test plan using Tomcat examples
• 10 minutes run
  

Test Plan:

2.5.1

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Transactions:

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JVM

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Behaviour:

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GC Activity:

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• GC activity is much higher with around 5 GC CPU peaks every 2 minutes

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• and 20 FULL GC of 700 to 800 ms each
• Throughput: 97,71%
• Pauses : 13,69s
• Memory Cleaned : 391m/min
• Full GC tend to be much more frequent at end of test
  

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2.7:

Transactions:

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JVM State:

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GC Activity:

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• No GC CPU peak,
• 1 FULL GC
• Throughput:98.54
• Pauses : 8.9s
• Memory cleaned: 1108m /min
  

Conclusion

• Better memory behaviour
• More accurate response times with High Load