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示例：
先准备一段程序，为了简单起见这里使用python来写，其中创建了两个线程来执行各自的任务。
import threading import time def test1(): while(True): time.sleep(1) print 'test1' def test2(): while(True): time.sleep(1) print 'test2' t1 = threading.Thread(target=test1, args=()) t2 = threading.Thread(target=test2, args=()) t1.start() t2.start() time.sleep(12345)
然后运行这个程序
$ python test.py
先使用 “pstree -apl ” 查看进程结构
$ pstree -apl 26855
python,26855 test.py
|-{python},26858
|-{python},26859然后使用 “ps -Lf ” 查看线程信息
$ ps -Lf 26855 UID PID PPID LWP C NLWP STIME TTY STAT TIME CMD jhadmin 26855 25902 26855 0 3 15:15 pts/5 Sl+ 0:00 python test.py jhadmin 26855 25902 26858 0 3 15:15 pts/5 Sl+ 0:00 python test.py jhadmin 26855 25902 26859 0 3 15:15 pts/5 Sl+ 0:00 python test.py
最后，可以使用 “pstack ” 查看线程的详细信息，如下：
$ pstack 26855 Thread 3 (Thread 0x7f8a344f2700 (LWP 26858)): #0 0x00007f8a3b5387a3 in select () from /lib64/libc.so.6 #1 0x00007f8a344f5070 in time_sleep () from /usr/lib64/python2.7/lib-dynload/timemodule.so #2 0x00007f8a3c215af0 in PyEval_EvalFrameEx () from /lib64/libpython2.7.so.1.0 #3 0x00007f8a3c217e3d in PyEval_EvalCodeEx () from /lib64/libpython2.7.so.1.0 #4 0x00007f8a3c1a188d in function_call () from /lib64/libpython2.7.so.1.0 #5 0x00007f8a3c17c8e3 in PyObject_Call () from /lib64/libpython2.7.so.1.0 #6 0x00007f8a3c2104fd in PyEval_EvalFrameEx () from /lib64/libpython2.7.so.1.0 #7 0x00007f8a3c2154bd in PyEval_EvalFrameEx () from /lib64/libpython2.7.so.1.0 #8 0x00007f8a3c2154bd in PyEval_EvalFrameEx () from /lib64/libpython2.7.so.1.0 #9 0x00007f8a3c217e3d in PyEval_EvalCodeEx () from /lib64/libpython2.7.so.1.0 #10 0x00007f8a3c1a1798 in function_call () from /lib64/libpython2.7.so.1.0 #11 0x00007f8a3c17c8e3 in PyObject_Call () from /lib64/libpython2.7.so.1.0 #12 0x00007f8a3c18b8d5 in instancemethod_call () from /lib64/libpython2.7.so.1.0 #13 0x00007f8a3c17c8e3 in PyObject_Call () from /lib64/libpython2.7.so.1.0 #14 0x00007f8a3c20e6f7 in PyEval_CallObjectWithKeywords () from /lib64/libpython2.7.so.1.0 #15 0x00007f8a3c2465c2 in t_bootstrap () from /lib64/libpython2.7.so.1.0 #16 0x00007f8a3bf1ce25 in start_thread () from /lib64/libpthread.so.0 #17 0x00007f8a3b54134d in clone () from /lib64/libc.so.6 Thread 2 (Thread 0x7f8a33cf1700 (LWP 26859)): #0 0x00007f8a3b5387a3 in select () from /lib64/libc.so.6 #1 0x00007f8a344f5070 in time_sleep () from /usr/lib64/python2.7/lib-dynload/timemodule.so #2 0x00007f8a3c215af0 in PyEval_EvalFrameEx () from /lib64/libpython2.7.so.1.0 #3 0x00007f8a3c217e3d in PyEval_EvalCodeEx () from /lib64/libpython2.7.so.1.0 #4 0x00007f8a3c1a188d in function_call () from /lib64/libpython2.7.so.1.0 #5 0x00007f8a3c17c8e3 in PyObject_Call () from /lib64/libpython2.7.so.1.0 #6 0x00007f8a3c2104fd in PyEval_EvalFrameEx () from /lib64/libpython2.7.so.1.0 #7 0x00007f8a3c2154bd in PyEval_EvalFrameEx () from /lib64/libpython2.7.so.1.0 #8 0x00007f8a3c2154bd in PyEval_EvalFrameEx () from /lib64/libpython2.7.so.1.0 #9 0x00007f8a3c217e3d in PyEval_EvalCodeEx () from /lib64/libpython2.7.so.1.0 #10 0x00007f8a3c1a1798 in function_call () from /lib64/libpython2.7.so.1.0 #11 0x00007f8a3c17c8e3 in PyObject_Call () from /lib64/libpython2.7.so.1.0 #12 0x00007f8a3c18b8d5 in instancemethod_call () from /lib64/libpython2.7.so.1.0 #13 0x00007f8a3c17c8e3 in PyObject_Call () from /lib64/libpython2.7.so.1.0 #14 0x00007f8a3c20e6f7 in PyEval_CallObjectWithKeywords () from /lib64/libpython2.7.so.1.0 #15 0x00007f8a3c2465c2 in t_bootstrap () from /lib64/libpython2.7.so.1.0 #16 0x00007f8a3bf1ce25 in start_thread () from /lib64/libpthread.so.0 #17 0x00007f8a3b54134d in clone () from /lib64/libc.so.6 Thread 1 (Thread 0x7f8a3c6f3740 (LWP 26855)): #0 0x00007f8a3bf22a0b in do_futex_wait.constprop.1 () from /lib64/libpthread.so.0 #1 0x00007f8a3bf22a9f in __new_sem_wait_slow.constprop.0 () from /lib64/libpthread.so.0 #2 0x00007f8a3bf22b3b in sem_wait@@GLIBC_2.2.5 () from /lib64/libpthread.so.0 #3 0x00007f8a3c242535 in PyThread_acquire_lock () from /lib64/libpython2.7.so.1.0 #4 0x00007f8a3c2461c2 in lock_PyThread_acquire_lock () from /lib64/libpython2.7.so.1.0 #5 0x00007f8a3c215af0 in PyEval_EvalFrameEx () from /lib64/libpython2.7.so.1.0 #6 0x00007f8a3c217e3d in PyEval_EvalCodeEx () from /lib64/libpython2.7.so.1.0 #7 0x00007f8a3c21533c in PyEval_EvalFrameEx () from /lib64/libpython2.7.so.1.0 #8 0x00007f8a3c217e3d in PyEval_EvalCodeEx () from /lib64/libpython2.7.so.1.0 #9 0x00007f8a3c21533c in PyEval_EvalFrameEx () from /lib64/libpython2.7.so.1.0 #10 0x00007f8a3c217e3d in PyEval_EvalCodeEx () from /lib64/libpython2.7.so.1.0 #11 0x00007f8a3c1a1798 in function_call () from /lib64/libpython2.7.so.1.0 #12 0x00007f8a3c17c8e3 in PyObject_Call () from /lib64/libpython2.7.so.1.0 #13 0x00007f8a3c18b8d5 in instancemethod_call () from /lib64/libpython2.7.so.1.0 #14 0x00007f8a3c17c8e3 in PyObject_Call () from /lib64/libpython2.7.so.1.0 #15 0x00007f8a3c17c9c5 in call_function_tail () from /lib64/libpython2.7.so.1.0 #16 0x00007f8a3c17ccfb in PyObject_CallMethod () from /lib64/libpython2.7.so.1.0 #17 0x00007f8a3c232f29 in Py_Finalize () from /lib64/libpython2.7.so.1.0 #18 0x00007f8a3c244325 in Py_Main () from /lib64/libpython2.7.so.1.0 #19 0x00007f8a3b46ac05 in __libc_start_main () from /lib64/libc.so.6 #20 0x000000000040071e in _start ()
这里多说一句，如果要看java程序的栈信息，可以使用 “kill -3 ” 来查看，比如：
$ nohub java Test > test.out & $ kill -3
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