[fpc-pascal] Compilation speed on Apple M1
florian at freepascal.org
Sat Nov 21 14:15:24 CET 2020
Am 21.11.2020 um 12:54 schrieb Tobias Giesen via fpc-pascal:
> According to Geekbench, the single core performance on the new Mac is
> around 1.8x as fast as my Intel Mac. Multicore is also much faster. I
> wonder why I don't see the speed increase in compiling though. Yes I am
> using different FPC and XCode versions, but I wonder what else could
> have an influence? My project is very large and not divided into
> packages, so I frequently need to recompile the whole project.
Large parts of FPC are memory throughput limited so I suspect the M1 is not that much better in this regard, not to
mention that most likely the AAarch code generator is worse than the x86 one. x86 received a lot of work in this field.
Maybe it's possible that you build using an LLVM compiler the FPC with native backend. As I do not use macOS, I have no
clue how to do this though.
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