how to get used max memory to run a software

[zcrself]

I have a software? for example: named Spp
how to write a c program to get the max memory of Spp?

thanks!

[cyberfish]

There is no way.

int main() {
    int x;
    scanf("%d", &x);
    malloc(x);
    for (;;);
}

What's the max memory used by this program?

[zcrself]

I see!

how to run a command every seconds?

the first second: exec: top -u admin
the second second: exec: top -u admin
the third second: exec: top -u admin
the fourth second: exec: top -u admin

[zacs7]

I see!

how to run a command every seconds?

the first second: exec: top -u admin
the second second: exec: top -u admin
the third second: exec: top -u admin
the fourth second: exec: top -u admin

while [ 1 ] ; do
   top -u admin
   sleep 2s
done

... That's not what you originally wanted though...

[Salem]

This perhaps?
getrusage(2): resource usage - Linux man page

[zcrself]

while [ 1 ] ; do
   top -u admin
   sleep 2s
done

... That's not what you originally wanted though...

how to store "top -u admin" to a variable?

char s[100];
s = 'top -u admin'

[Subsonics]

Top is reporting information and updates it automatically, which I suppose was sacs7's point with his bash script. You can set the interval to 1 second with the -i flag, I think that is pretty close to default though.

[zcrself]

Top is reporting information and updates it automatically, which I suppose was sacs7's point with his bash script. You can set the interval to 1 second with the -i flag, I think that is pretty close to default though.

I see,
Good!