TLDR Tech / Practical
CMake 4.2 Instrumentation Reveals Slow Build Bottlenecks
CMake version 4.2's instrumentation feature offers detailed tracking throughout the configure, build, test, and install stages, converting unclear build durations into useful performance data. The author explains how to implement custom instrumentation hooks, generate trace files, and utilize options like OPTIMIZE_DEPENDENCIES to remove unneeded build sequence restrictions and enhance parallel building.
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