Would please someone do the following command on Linux and Cygwin?
time tools/incdir.sh -s arm-none-eabi-gcc /home/Schock/nuttx/nuttx/include
(Replace the path with your NuttX path.)
For MSYS2 it's in the range of:
real 0m0,189s
user 0m0,061s
sys 0m0,045s
I don't have the Linux box on now, but here are the results on Cygwin
(32Gb Rizen 5 3600, NVMe):
First time:
$ time tools/incdir.sh -s arm-none-eabi-gcc
/home/Schock/nuttx/nuttx/include
-isystem "/home/Schock/nuttx/nuttx/include"
real 0m0.198s
user 0m0.000s
sys 0m0.092s
Thereafter:
real 0m0.094s
user 0m0.000s
sys 0m0.075s
After incdir.sh has been included in the in-memory cache, it is pretty
fast. But it can never be super fast. Both Cygwin and MSYS2 suffer
from the well documented fork problem:
https://superuser.com/questions/133313/can-i-speed-up-cygwins-fork . So
that is what causes the ports of GNU tools to be so slow in Cygwin.
Anti-virus run time checking is a big factor too.
