Flamegraphs 🔥 #46
Description
Make sure to install perf, then:
# Attach to running process
perf record -g --call-graph dwarf/fp/lbr -F 101 -p PID -- sleep 60
# For full lifetime of process
FUZZ=rpc perf record -g --call-graph fp/lbr/dwarf -F 101 ./bld-cmake/bin/fuzz -runs=1 ~/Downloads/clusterfuzz-testcase-rpc-5441640485683200
hotspot ./perf.data
Make sure to clone https://github.com/brendangregg/FlameGraph, then:
( perf script | ./FlameGraph/stackcollapse-perf.pl --all | ./FlameGraph/flamegraph.pl > /tmp/a.svg ) && firefox /tmp/a.svg