开启飞行模式,打印JFR日志,使用jmc打开;ide
启动时打开飞行模式 -XX:+UnlockCommercialFeaturesidea
-XX:+UnlockCommercialFeatures
打印飞行记录 Jcmd <pid> JFR.start duration=120s filename=myrecording.jfr 执行完该命令,会显示文件地址;日志
Jcmd <pid> JFR.start duration=120s filename=myrecording.jfr
Started recording 1. The result will be written to: F:\ideaSpace\study\myrecording.jfr