What is the longest time-consuming flame from node cpu profile? I don't know how to ask the boss for an answer.

the old project. Today, we found that the cpu is unusually high. Through Aliyun"s node performance platform, we can get the flame diagram when it is soaring. What is the longest program in the figure? is it the main program? New to node, I don"t know much about asking for the boss"s answer:

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Mar.29,2021

program is the time of cpu occupied by the main thread of node

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