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by aaptel
235 days ago
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How much overhead does the recording have? I want to debug custom kernel filesystem issues on a 96 CPUs machine. My benchmark is building the Linux Kernel def config with make -j96.
I have tried ftrace before but it's making everything 100x slower... |
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Very much a symptom of what you are trying to record! See below
> I have tried ftrace before but it's making everything 100x slower...
If ftrace is making things 100x slower, I'm not sure that Perfetto is going to help you very much: fundamentally, for kernel stuff, it uses ftrace under the hood!