代码语言:javascript复制
#include
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
代码语言:javascript复制#include
void f();
int main() {
f();
return 0;
}
void f() {
//int i=0;
volatile int i=0;
while (i<100) {
i; i=10;
}
}