ps&CPU

#include <pthread.h>

void f();
int main() {
        f();
        return 0;
}

void f() {
        int i=0;
        //volatile int i=0;
        while (i<100) { i=10; }
}

root@x:~# ps aux|grep xxx|grep -v grep
root       825 96.5 0.0   2460   724 pts/2    R+   11:33   0:03 ./xxx
root@x:~# ps aux|grep xxx|grep -v grep
root       825 95.6 0.0   2460   724 pts/2    R+   11:33   0:04 ./xxx
root@x:~# ps aux|grep xxx|grep -v grep
root       825 93.0 0.0   2460   724 pts/2    R+   11:33   0:05 ./xxx
root@x:~# ps aux|grep xxx|grep -v grep
root       825 107 0.0   2460   724 pts/2    R+   11:33   0:06 ./xxx
root@x:~# ps aux|grep xxx|grep -v grep
root       825 100 0.0   2460   724 pts/2    R+   11:33   0:07 ./xxx
root@x:~# ps aux|grep xxx|grep -v grep
root       825 96.2 0.0   2460   724 pts/2    R+   11:33   0:07 ./xxx
root@x:~# ps aux|grep xxx|grep -v grep
root       825 104 0.0   2460   724 pts/2    R+   11:33   0:08 ./xxx
root@x:~# ps aux|grep xxx|grep -v grep
root       825 99.5 0.0   2460   724 pts/2    R+   11:33   0:08 ./xxx
root@x:~# ps aux|grep xxx|grep -v grep
root       825 97.0 0.0   2460   724 pts/2    R+   11:33   0:09 ./xxx
root@x:~# ps aux|grep xxx|grep -v grep
root       825 103 0.0   2460   724 pts/2    R+   11:33   0:10 ./xxx
root@x:~# ps aux|grep xxx|grep -v grep
root       825 102 0.0   2460   724 pts/2    R+   11:33   0:11 ./xxx

#include <pthread.h>

void f();
int main() {
        f();
        return 0;
}

void f() {
        //int i=0;
        volatile int i=0;
        while (i<100) {
                ++i;           i=10;
        }
}

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