18–20 Sept 2024
Europe/Vienna timezone

Utilizing type info in the perf tools

20 Sept 2024, 10:22
22m
"Room 1.31-1.32" (Austria Center)

"Room 1.31-1.32"

Austria Center

123
Tracing / Perf events MC Tracing / Perf events MC

Speaker

Namhyung Kim (Google)

Description

Recently perf tools added data type profiling which can find type information in the sample data using debug information (DWARF). It added the basic usage in the perf report and annotate with new sort keys. But it can be extended by more targeted commands like perf mem and perf c2c. We can discuss what it will be looked like and if there are other cases where the type info can be used.

Also using BTF instead of DWARF would be useful even if it has limited information. How to utilize the existing BTF or to extend it to be more useful would be a good discussion point as well.

Primary author

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