arm-none-eabi-gcc very slow but time report say that is fast on windows

I m using gcc for arm on windows but it is very slow :compiled file:

#include "stdint.h"int main ( int argc, char **argv ) {     // code     return 0; // Indicates that everything went well.}

Command used:

bash-3.1$ time C\:/Program\ Files\ \(x86\)/GNU\ Tools\ ARM\ Embedded/5.4\ 2016q3/bin/arm-none-eabi-gcc.exe -c -ftime-report main.c

result:

bash-3.1$ time C\:/Program\ Files\ \(x86\)/GNU\ Tools\ ARM\ Embedded/5.4\ 2016q3/bin/arm-none-eabi-gcc.exe -c -ftime-report main.c    Execution times (seconds)     phase setup             :   0.01 (52%) usr    1538 kB (90%) ggc     phase parsing           :   0.01 (26%) usr     127 kB ( 7%) ggc     TOTAL                 :   0.02              1707 kB    real    0m0.795s    user    0m0.000s    sys     0m0.015s

and with missing file:

bash-3.1$ time C\:/Program\ Files\ \(x86\)/GNU\ Tools\ ARM\ Embedded/5.4\ 2016q3/bin/arm-none-eabi-gcc.exe -c -ftime-report main.carm-none-eabi-gcc.exe: error: main.c: No such file or directoryarm-none-eabi-gcc.exe: fatal error: no input filescompilation terminated.real    0m0.123suser    0m0.000ssys     0m0.015s

So I don't understant why gcc is so slow

Ps : host is a Intel i7 with ssd and 8Go of RAM