In Linux, we have user-space and kernel-spacethreads. The user threads are associated with a user application, and the kernel threads are created and managed by the OS. htop, by default, displays the user threads and hides the kernel threads**. Next, let’s check how we can modify this...
timeout); //开始检查进程 }}static void check_hung_task(struct task_struct *t, unsigned long timeout){ unsigned long switch_count = t->nvcsw + t->nivcsw; //计算上下文切换次数 ... ... if (switch_count != t->last_switch_count) { //和上次切换次数进行比较 ...
-p <PID>监控指定进程（Process ID），可用 -p ALL 监控所有进程 -t显示线程（TID）级别的统计信息 ...
Windows 上, 进程和线程可以用句柄来标识, 而且大多数针对进程对象和线程对象的 API 要求用户以句柄来标识, 比如 CreateProcess 创建一个进程后, 调用者会得到一个指向新进程的句柄以及指向新进程中主线程的句柄. 这些句柄值是 process-wide 的, 意即, 这些句柄值只在获得句柄的那个进程中有效, 不能直接把进程 ...
12622.507253: sched_switch: prev_comm=Binder_1 prev_pid=217 prev_prio=120 prev_state=S ==> next_comm=ndroid.launcher next_pid=584 next_prio=120' // @suppress longLineCheck ]; var m = new tr.Model(lines.join('\n'), false); assert.isFalse(m.hasImportWarnings);...
*/ if (!IS_ERR(p)) { struct completion vfork; struct pid *pid; trace_sched_process_fork(current, p); /* 得到新创建的进程的pid信息 */ pid = get_task_pid(p, PIDTYPE_PID); nr = pid_vnr(pid); if (clone_flags & CLONE_PARENT_SETTID) put_user(nr, parent_tidptr); /* 如果...
bool handle_irq(unsigned irq, struct pt_regs *regs) { struct irq_desc *desc; int overflow; /* 检查栈是否溢出 */ overflow = check_stack_overflow(); /* 获取中断描述符 */ desc = irq_to_desc(irq); /* 检查是否获取到中断描述符 */ if (unlikely(!desc)) return false; /* 检查使用的...
Let’s see an example and identify the process and its thread in Linux using theps -eLfcommand. We’re interested in PID, LWP, and NLWP attributes: PID: Unique process identifier LWP: Unique thread identifier inside a process NLWP: Number of threads for a given process ...
if (group_dead) acct_process(); // 进程信号量 exit_sem(tsk); // 进程打开的文件 __exit_files(tsk); // 进程使用的文件系统 __exit_fs(tsk); // hmmm,忽略 check_stack_usage(); // 进程的thread_info exit_thread(); // cgroup...虚拟化命名空间相关的东西 cgroup_exit(tsk, 1); // ...
wchanWCHANname of the kernel function in which the process is sleeping, a "-" if the process is running, or a "*" if the process is multi-threaded and ps is not displaying threads. 二、统计当前运行的线程总数."-L" c233 plugins #ps -eLf|grep -v $$|wc -l //-L Show threads, ...