Another observation:
wc -l test.dep (for "-deps=test.dep ... -unittest -main" command):
Linux 2.076.1: 41389
Linux 2.069.1: 144
Making small changes to 2.069.1 runtimes (I had run with a
different program by mistake. The measurement is still of the
same order)
On Wednesday, 11 October 2017 at 06:25:19 UTC, Dhananjay wrote:
Hello,
I am upgrading to DMD 2.076.1 from DMD 2.069.2 (similar results
on 2.075.1), and seeing a huge increase in unittest compilation
time when the -deps parameter is also passed to dmd. This is on
both OSX and linux. What can be the cause of this?
Sample program:
import std.stdio: writeln;
unittest { writeln("TestUT"); }
version (unittest) {}
else
{
void main()
{
writeln("TestMain");
}
}
Observations:
Command: time dmd -deps=test.dep -c -o- test.d -de -w -m64
-color -g -debug -gs -unittest -main
Linux runtime: user 0m28.192s << Note the increase
OSX runtime: user 0m48.508s <<
Linux 2.069.1 runtime: user 0m0.045s <edited>
Command: time dmd -c -o- test.d -de -w -m64 -color -g -debug
-gs -unittest -main
Linux runtime: user 0m0.064s
OSX runtime: user 0m0.090s
Linux 2.069.1 runtime: user 0m0.053s <edited>
Command: time dmd -deps=test.dep -c -o- test.d -de -w -m64
-color -g -debug -gs
Linux runtime: user 0m0.584s
OSX runtime: user 0m0.882s
Linux 2.069.1 runtime: user 0m0.035s <edited>
Command: time dmd -c -o- test.d -de -w -m64 -color -g -debug -gs
Linux runtime: user 0m0.048s
OSX runtime: user 0m0.074s
Linux 2.069.1 runtime: user 0m0.036s <edited>
Environment:
OSX: El Capitan 10.11.6
Linux with DMD 2.076.1: Gentoo 4.9.34
Linux with DMD 2.069.1: Centos 7
