Profiling Node.js programs which spawn another Node.js processes using Linux prof is unnecessarily hard: new processes use executable from the parent process, so it is not possible to add a shell wrapper around Node to add --perf-prof to a subprocess, one has to find all the places where subprocesses are spawned and add the argument there.
NODE_OPTIONS is perfect for this task (just run the top-level process with it and all subtree will emit profiling data), but it does not support --perf-prof or --perf-basic-prof at the moment.
Please add it.
Profiling Node.js programs which spawn another Node.js processes using Linux prof is unnecessarily hard: new processes use executable from the parent process, so it is not possible to add a shell wrapper around Node to add
--perf-profto a subprocess, one has to find all the places where subprocesses are spawned and add the argument there.NODE_OPTIONSis perfect for this task (just run the top-level process with it and all subtree will emit profiling data), but it does not support--perf-profor--perf-basic-profat the moment.Please add it.