On Tue, Nov 19, 2019 at 6:52 AM <miha.vrhov...@gmail.com> wrote:
>
> I'm running windows cli exe on linux via wine using os.Exec command.. this
> takes 28s to complete.
> If I run the same command via linux cli it takes 2s to complete, if I run the
> same command via php's exec it also takes about 2 seconds to complete.
>
> == linux cli ==
>
> time WINEDEBUG=err-all,fixme-all WINEARCH=win32 /opt/wine-staging/bin/wine
> cmd.exe /c help
> ....
> real 0m1,366s
> user 0m0,002s
> sys 0m0,225s
>
> == php ==
> cat t.php
> <?php
> $out=array();
>
> exec('WINEDEBUG=err-all,fixme-all WINEARCH=win32 /opt/wine-staging/bin/wine
> cmd.exe /c help', $out);
>
> var_dump($out);
>
> .....
>
> real 0m1,427s
> user 0m0,035s
> sys 0m0,216s
>
>
> ==go exec==
>
> func main() {
> now := time.Now()
> ctx, cancel := context.WithTimeout(context.Background(), 120*time.Second)
> defer cancel()
> cmd := exec.CommandContext(ctx, "/opt/wine-staging/bin/wine", "cmd",
> "/c", "help")
> cmd.Env = []string{"WINEDEBUG=err-all,fixme-all", "WINEARCH=win32"}
> output, err := cmd.CombinedOutput()
> if err != nil {
> fmt.Println(err)
> }
> fmt.Println(string(output))
> fmt.Println(time.Now().Sub(now))
> }
>
> time bin/osexec
>
> real 0m39,915s
> user 0m17,062s
> sys 0m0,195s
>
>
> * I have tried to set stdin and std out directly to the one from os (no
> difference)
> * I have replaced cmd.CombinedOutput with cmd.Run() (no difference)
>
> go version
> go version go1.13.3 linux/amd64
> I'm totally clueless on what's going on.
How long does it take to just run the wine command from the shell?
My first guess would certainly be that the problem is in wine, not in
Go's os/exec package. Starting up a Windows emulator has to take a
certain amount of time.
Ian
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