Question

有人知道cygwin中strace的输出格式吗？在我看来，通过对选项的试验，从某种意义上说，自过程开始以来，前两列是微秒，但是我找不到关于它们是什么或应如何使用的任何解释。我认为它们是，第一个数字是完成系统调用的usec，第二个数字是自进程启动以来的usec。有人肯定知道吗？

excerpt from strace -f ls
   35   33002 [main] ls 2364 void: 0x0 = signal (3, 0x1)
   38   33040 [main] ls 2364 fhandler_base::close_with_arch: line 1180:  /dev/pty1<0x180335700> usecount + -1 = 1
   38   33078 [main] ls 2364 fhandler_base::close_with_arch: not closing archetype
   41   33119 [main] ls 2364 init_cygheap::close_ctty: closing cygheap->ctty 0x180335700
   39   33158 [main] ls 2364 fhandler_base::close_with_arch: closing passed in archetype 0x0, usecount 0
   38   33196 [main] ls 2364 fhandler_pty_slave::cleanup: /dev/pty1 closed, usecount 0
   39   33235 [main] ls 2364 fhandler_pty_slave::close: closing last open /dev/pty1 handle
  121   33356 [main] ls 2364 fhandler_console::free_console: freed console, res 1

Answer 1

first =两个strace输出之间的时间
秒=程序开始以来的累积时间

   35   33002 [main] ls 2364 void: 0x0 = signal (3, 0x1)
     38+33002=33040
   38   33040 [main] ls 2364 fhandler_base::close_with_arch: line 1180:  
     38+33040=33078
   38   33078 [main] ls 2364 fhandler_base::close_with_arch: not closing archetype
     41+33079=33119
   41   33119 [main] ls 2364 init_cygheap::close_ctty: closing cygheap->ctty 0x180335700

cygwin中strace的输出格式

1 个答案: