SHELL=/bin/sh vs bash performance

[Michael Stahl]

On 27/09/12 13:57, Michael Stahl wrote:
> following numbers are from my Fedora 17 system, with the toy attachment
> that spawns 100k shells running "true" (only one run each):

argh... stupid me forgot to attach it and even clicked the wrong button
on the thunderbird warning...
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#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/wait.h>

int main(void)
{
    char * shell = getenv("SHELL");
    printf("%s\n", shell);
    for (int i = 0; i < 100000; ++i)
    {
        if (fork())
        {
            wait(0);
        }
        else
        {
            char *const argv[] = { shell, "-c", "true", 0 };
            execv(shell, argv);
        }
    }
}