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Copy from:http://dhruba.name/2010/02/07/creation-dynamic-loading-and-instrumentation-with-javaagents/Creation, dynamic loading and instrumentation wit... 阅读全文
posted @ 2014-09-03 09:13
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Copy from:http://tomee.apache.org/javaagent.htmlAdding a JavaAgentAdding a java agent is done via a vm parameter as follows:java -javaagent:openejb-ja... 阅读全文
posted @ 2014-09-03 09:11
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Copy from :http://nijiaben.iteye.com/blog/1847212 在启动和运行期都可以加载agent代理，在启动的时候可通过-javaagent参数来执行agent代理，而在运行期就是通过attach这种机制动态load了。 如果在vm启动过程中加载agent，那... 阅读全文
posted @ 2014-09-03 09:10
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Copy from:http://www.javamex.com/tutorials/memory/instrumentation.shtmlInstrumentation: querying the memory usage of a Java objectThe most reliable— b... 阅读全文
posted @ 2014-09-03 09:06
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Isolation levels in SQL Server control the way locking works between transactions.SQL Server 2008 supports the following isolation levelsRead Uncommit... 阅读全文
posted @ 2014-09-03 08:57
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copy from https://blog.codecentric.de/en/2011/10/measure-java-performance-sampling-or-instrumentation/In recent discussions, I noticed a confusion abo... 阅读全文
posted @ 2014-09-03 08:56
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Five ways for tracing Java executionI'm often faced with a situation where I need to dig into code that I didn't write. Most of it is poorly documente... 阅读全文
posted @ 2014-09-03 08:54
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