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Perfetto

Notes on using perfetto

• downloading and use trace_processor to easily export traces to SQL tables
  • trace_processor <trace> -e db.sql dumps the table trivially
  • this makes it much easier to do analysis across multiple traces
• the slices table is my favorite, can also query from within perfetto
  • they also have sql macros in the UI
• highlighting a region allows generating flamegraphs easily (can be slow)
• shortcuts like Ctrl-A work for selecting parts of the trace
• counters are pretty cool to highlight numerical values

Next set of experiments

• plugins
• loading in contents more dynamically to assemble traces

— Kunal