The ghc-events-analyze package

[Tags: bsd3, program]

ghc-events-analyze is a simple Haskell profiling tool that uses GHC's eventlog system. It helps with some profiling use cases that are not covered by the existing GHC profiling modes or tools. It has two major features:

1. While ThreadScope shows CPU activity across all your cores, ghc-events-analyze shows CPU activity across all your Haskell threads.

2. It lets you label periods of time during program execution (by instrumenting your code with special trace calls) and then lets you visualize those time periods or get statistics on them.

It is very useful for profiling code when ghc's normal profiling mode is not available, or when using profiling mode would perturb the code too much. It is also useful when you want time-profiling information with a breakdown over time rather than totals for the whole run.

The blog post Performance profiling with ghc-events-analyze describes the motivation in more detail.


Versions0.2.0, 0.2.1, 0.2.2
Change logChangeLog
Dependenciesbase (>=4.5 && <4.9), containers (==0.5.*), diagrams-lib (>=1.2 && <1.4), diagrams-svg (>=1.1 && <1.4), filepath (>=1.3 && <1.5), ghc-events (==0.4.*), lens (>=3.10 && <4.13), mtl (>=2.2.1 && <2.3), optparse-applicative (==0.11.*), parsec (==3.1.*), SVGFonts (>=1.4 && <1.6), template-haskell, th-lift (>=0.6 && <0.8), transformers (>=0.3 && <0.5) [details]
Copyright2013-2014 Well-Typed LLP
AuthorEdsko de Vries, Duncan Coutts, Mikolaj Konarski
CategoryDevelopment, Profiling, Trace
Source repositoryhead: git clone
UploadedThu Sep 24 09:21:41 UTC 2015 by EdskoDeVries
Downloads611 total (7 in last 30 days)
1 []
StatusDocs not available [build log]
Last success reported on 2015-11-12 [all 5 reports]


Maintainers' corner

For package maintainers and hackage trustees