I read several mails in the past that pointed out how fast fpc would
compile itself, if one uses "make --jobs=10" or similar.
If that is true, then first question: Does it work on Windows?
Using make from
https://svn.freepascal.org/svn/fpcbuild/trunk
folder install\binw64
Having checked from the windows task manager, that this is indeed the
make.exe that is being used
make.exe --jobs=8 all
Calling make --help identifies make knows the argument.
I get an average cpu usage of 8 to 9 % (6 Cores / 12 threads means this
is one core).
Throughout the entire compile, the peak load is 15%
System
Windows 10 64 bits
I7 8700K (6cores / 12 threads) / 32 gb ram / no swapfile, so there is
no swapping, and there is plenty of free ram
All data on SSD (M2)
The task manager shows (while building a 32 bit fpc ):
- several make.exe (no cpu usage), but there will be several even for
one task, as make descends into directories
- one fpmake
- one ppc386.exe
So for all I can say, no speedup due to --jobs.
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