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This is the homepage of the profiling tool Callgrind
and the profile data visualization KCachegrind.
Both are licensed under GPL V2.
Callgrind uses runtime instrumentation via the Valgrind
framework for its cache simulation and call-graph generation.
This way, even shared libraries and
dynamically opened plugins can be profiled.
The data files generated by Callgrind can be loaded into KCachegrind for
browsing the performance results. But there is also a command line tool
in the package to get ASCII reports from data files
without the need to use KCachegrind.
The format of Callgrind output is
documented here. With
conversion scripts,
KCachegrind is able to visualize output of other profilers like
OProfile,
a system-wide profiler for Linux
using statistical sampling with hardware performance counters.
There also exist converters for profiling output of Python, PHP and
PERL.
Current Releases
- KCachegrind 0.7.4 (includes qcachegrind, just needs Qt4 or Qt5)
- for Callgrind, install Valgrind 3.8.x
Requirements
- Callgrind: part of Valgrind (supports Linux on x86, amd64, arm7, ...)
- KCachegrind:
- Libraries and development files for KDE 4.4 or higher
- Commands 'dot' (GraphViz) for call graph, and 'objdump' (BinUtils) for assembler view (these are runtime requirements, not needed for compilation)
- QCachegrind (included in KCachegrind sources)
- Qt5 or Qt4.x (x>=4) or higher
- 'dot' binary for call graph and 'objdump' binary for annotated machine code
News
Old News...
Author and Maintainer
Josef Weidendorfer,
Josef.Weidendorfer@gmx.de
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