线程cpu跟踪

1、在每一个线程的开始调用THREAD_REGISTER(), 退出调用THREAD_UNREGISTER()

#define THREAD_REGISTER() do\
{\
    char path[64];\
    snprintf(path, sizeof(path), "/tmp/thread_%s_%ld", __FUNCTION__, syscall(SYS_gettid));\
    creat(path, S_IWRITE|S_IREAD|S_IEXEC);\
}while(0)

#define THREAD_UNREGISTER() do\
{\
    char path[64];\
    snprintf(path, sizeof(path), "/tmp/thread_%s_%ld", __FUNCTION__, syscall(SYS_gettid));\
    remove(path);\
}while(0)

2、用全功能的top查看各个线程占用cpu的情况

ls /tmp/thread_*
./top.sh -d1 -H
./cpu_info.sh [pid]

工具下载：http://download.csdn.net/detail/codeheng/9614000