Profiling Exlixir

gistfile1.md

get fproxf

https://github.com/talko/fprofx

compile fproxf

erlc src/fprofx.erl

copy beam file to project

path: _build/dev/lib/fprofx/ebin/

open project console

iex -S mix

profile a function

• :fprofx.apply(SBS, :config, ["fooo"], [{:procs, :erlang.processes -- [:erlang.whereis(:fprofx_server)]}])
• :fprofx.profile
• :fprofx.analyse([{:dest, 'fprofx.analysis'}])

convert output file with tool from fproxfx

../fprofx/erlgrindx fprofx.analysis

open with kcachegrind

kcachegrind fprofx.cgrind