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README
ghc-prof-flamegraph
This is a small tool to convert GHC time profiling reports into a format understandable by the FlameGraph tool.
Install
cabal install
Usage
First convert a .prof
file into the flame graph svg:
$ cat ~/src/packdeps/packdeps.prof | ghc-prof-flamegraph > packdeps.prof.svg
Or, alternatively, just pass the .prof
file as an argument. The tool will
then create corresponing .svg
file:
$ ghc-prof-flamegraph ~/src/packdeps/packdeps.prof
Output written to ~/src/packdeps/packdeps.svg
The previous command will produce ~/src/packdeps/packdeps.svg
file.
You can customize the behavior of the underlying flamegraph.pl
by passing
options via –framegraph-option
. For example, you can customize the title:
$ ghc-prof-flamegraph ~/src/packdeps/packdeps.prof '--flamegraph-option=--title=Package dependencies'
Output written to ~/src/packdeps/packdeps.svg
You can also generate a flamegraph using the allocation measurements,
using the --alloc
flag.