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cpu profiler异常符号 #2795

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icexin opened this issue Oct 23, 2024 · 7 comments
Open

cpu profiler异常符号 #2795

icexin opened this issue Oct 23, 2024 · 7 comments

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@icexin
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icexin commented Oct 23, 2024

image
如图,很多热点最终指向了这个函数,是什么意思?

@chenBright
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地址转符号名字的时候出异常了,跟你用的工具有关系吧。用内置服务看也有问题吗?

@icexin
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icexin commented Oct 29, 2024

找不到现场了,内置的看也会有一些莫名的符号,或者一个孤立的函数调用,缺乏完整的调用链。

@chenBright
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应该跟gperftools的unwind方式有关,可以尝试换其他的unwind方式。

@zhaojinzhou
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遇到了相同的问题。 Ubuntu 20 会有问题, centos 7就很正常。

@zhaojinzhou
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32ce5086aae79bfe96739aff396031178d99b6da

@zhaojinzhou
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unwind

怎么换呢?
譬如说,举个例子?

@chenBright
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chenBright commented Oct 30, 2024

可以看看gperftools的文档

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