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The latest version of stackcollapse-ghc is 0.0.1.4-1.

stackcollapse-ghc

Version 0.0.1.1 revision 0 uploaded by rzeznik.

Package meta

Synopsis
Program to fold GHC prof files into flamegraph input
Description

Program to fold GHC prof files into flamegraph input The reasons why this package exists despite other packages with similar functionality (not including the NIH syndrome) boil down to:

  • it does only one thing (stack collapsing), so it's up to the user to install flamegraph scripts, pass options etc (in my eyes it's not a limitation, on the contrary),

  • output control: annotations (color profiles), extending traces from a configured set of modules with the source locations or toggling qualified names,

  • precise ticks and/or bytes with -p reports,

  • it's fast

Basic usage

Visualize ticks

If you have a detailed prof file (-P RTS option)

stackcollapse-ghc prof_file | flamegraph.pl --title 'Example' --subtitle 'Time' --countname ticks > path_to_svg

If you have a standard prof file (-p RTS option)

stackcollapse-ghc -p prof_file | flamegraph.pl --title 'Example' --subtitle 'Time' --countname ticks > path_to_svg

Visualize allocations

If you have a detailed prof file (-P RTS option)

stackcollapse-ghc --alloc prof_file | flamegraph.pl --title 'Example' --subtitle 'Bytes allocated' --countname bytes > path_to_svg

If you have a standard prof file (-p RTS option)

stackcollapse-ghc --alloc -p prof_file | flamegraph.pl --title 'Example' --subtitle 'Bytes allocated' --countname bytes > path_to_svg

See the full README for details.

Author
Marcin Rzeźnicki
Bug reports
https://github.com/marcin-rzeznicki/stackcollapse-ghc/issues
Category
Profiling
Copyright
2020 Marcin Rzeźnicki
Homepage
https://github.com/marcin-rzeznicki/stackcollapse-ghc
Maintainer
Marcin Rzeźnicki <marcin.rzeznicki@gmail.com>
Package URL
n/a
Stability
n/a

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