make-tracing

Tracing GNU make in chrome://tracing

this is designed to analyze the Kokkos and Kokkos Kernels projects, and may not work directly for other programs

copy trace-make.sh into your build directory

chmod +x trace-make.sh
make SHELL=./trace-make.sh ...

This will run your build as normal, except the trace-make.sh script will record the start and end timestamp of each command make wants to invoke. It will produce a make.trace file. You can then convert this to the chrome://tracing format with

python3 chrome-tracing.py make.trace make.chrometracing

Open a chromium browser, navitage to chrome://tracing and "Load" the make.chrometracing file. The spans are organized by starting timestamp. You can click on a span to see the actual command make invokes.

FAQs

• None of the spans in chrome://tracing have a name

chrome-tracing.py detects file names by looking for nvcc_wrapper ... -c /.../filename.cpp in the command make invokes. If your compiler is different or you compile non-c++ files, the events may not be annotated. However, you can still click on a span to see what command was invoked.

• Does it work with python 2?

Never tried it.

• I want to use a different name than make.trace for the raw timestamp data.

Edit trace-make.sh.

• I want to group spans by X or sort spans by Y or filter spans by Z

Not implemented.