build,win: add PGO workload scripts - #63696
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Signed-off-by: StefanStojanovic <stefan.stojanovic@janeasystems.com>
Signed-off-by: StefanStojanovic <stefan.stojanovic@janeasystems.com>
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Pinging @nodejs/build for visibility (@nodejs/platform-windows too). |
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Here are the performance improvements calculated based on running the benchmarks from the Node.js repository. https://github.com/JaneaSystems/node-pgo-perf |
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richardlau
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Aug 18, 2026
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This PR adds PGO workload scripts to be used for the PGO-enabled build of Node.js, as well as the wrapper script to run all of the workloads and combine all of the profraw files into profdata on Windows. This way, the build becomes a 3-step process:
While this was developed primarily for Windows, PGO itself is platform-agnostic, so the workloads should do well on other platforms that support PGO, although some utility scripts for running an instrumented build and getting results should probably be added to make its usage simpler.
I will share the performance differences in the following days, showcasing the improvements with PGO enabled on Windows.
Refs: #61964