启动arthas
- curl -O https://alibaba.github.io/arthas/arthas-boot.jar
- java -jar arthas-boot.jar
-
启动成功
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sc 查找全限定名
sc *xxx
trace 方法耗时分析
trace com.xxx.xxx.MyClass myMthod
增加条件耗时过滤 trace demo.MathGame run '#cost > 10'
打印jdk 耗时 trace --skipJDKMethod false demo.MathGame run
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watch
watch com.xxx.xx.MyClass myMethod "{params,target,returnObj}" -x 2
耗时过滤 watch demo.MathGame primeFactors '{params, returnObj}' '#cost>200' -x 2
入参过滤 watch demo.MathGame primeFactors "{params[0],target}" "params[0]<0"
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