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04025fdba6
* Add --ftime-trace to dmd * Refactor timetrace code for dmd. Pass Outbuffer by ref, move timetrace filename logic to main.d
16 lines
687 B
Text
16 lines
687 B
Text
Build time profiling has been added to dmd
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The `-ftime-trace` switch that the LDC compiler already has, is now also available in dmd.
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It can be used to figure out which parts of your code take the longest to compile, so you can optimize your build times.
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$(CONSOLE
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dmd -ftime-trace app.d
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)
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This will output `app.o.time-trace`.
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A different output file can be selected with `-ftime-trace-file=trace.json`.
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The output is in Google Chrome's profiler format, which can be viewed in an interactive viewer like [ui.perfetto.dev](https://ui.perfetto.dev).
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See also this YouTube tutorial: [Easily Reduce Build Times by Profiling the D Compiler](https://www.youtube.com/watch?v=b8wZqU5t9vs)
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