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chrome2calltree

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chrome2calltree

convert chrome CPU profiles to callgrind formatted files

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chrome2calltree

Convert CPU profiles exported from Chrome to callgrind format.

uwflow.com example

Installation

This is only useful if you have KCacheGrind or QCacheGrind installed.

To install KCacheGrind on Linux:

sudo apt-get install kcachegrind

To install QCacheGrind on OS X:

brew install qcachegrind

Once you have that, grab the npm package:

npm install -g chrome2calltree

Usage

Collect a Chrome CPU profile either by using console.profile() or by clicking buttons in the Developer Tools. Save the profile somewhere to disk.

save Chrome CPU profile

Assuming you have KCacheGrind or QCacheGrind installed, you can then load your CPU profile using chrome2calltree. Note that it might open in the background, so you might have to manually switch applications.

chrome2calltree -k -i ~/Downloads/CPU-20131213T155541.cpuprofile

qcachegrind showing a CPU profile

If you want to save the converted callgrind output for later, you can do that using the -o flag.

chrome2calltree -i ~/Downloads/CPU-20131213T155541.cpuprofile -o foobar.profile
usage: chrome2calltree [-h] [-v] [-o OUTFILE] [-i INFILE] [-k]

Convert CPU profiles exported from Chrome to callgrind format

Optional arguments:
  -h, --help            Show this help message and exit.
  -v, --version         Show program's version number and exit.
  -o OUTFILE, --outfile OUTFILE
                        Save calltree stats to OUTFILE. If omitted, writes to
                        standard out.
  -i INFILE, --infile INFILE
                        Read chrome CPU profile from INFILE. If omitted,
                        reads from standard in.
  -k, --kcachegrind     Run the kcachegrind tool on the converted data.
                        Unless combined with the -o flag, will write output
                        to a temporary file and remove it after kcachegrind
                        exits.

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Package last updated on 27 Jan 2016

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