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spacejam/marathon perf flamegraph.md

Last active October 6, 2015 18:35
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marathon perf flamegraph.md
  • step 1: get the toolbox and enter it (it's a container):
wget https://raw.githubusercontent.com/mesosphere/docker-containers/master/dcos-debug/toolbox
chmod +x toolbox
./toolbox
  • step 2: collect the trace (this example runs for 30s):
perf record -F 99 -p <marathon PID> -g -- sleep 30
  • step 3: send the trace to us (the host machine root is accessible at /media/root from inside the toolbox)
# this puts perf.data into /tmp/perf.data on the host machine
cp perf.data /media/root/tmp/perf.data
<exit toolbox>
<email us the perf.data file>
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