One more useful DTrace command line

Solaris 10: tips and tricks for system administration

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Wednesday, November 24. 2004

Posted by Gleb Reys in DTrace

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One more useful DTrace command line

One more variation of using DTrace allows to track which system calls are made from a certain process. Or do the same for lots of processes, if you use execname and not PIDs...

Such a command line will show you all system calls made by Xorg in the last 5 seconds:
dtrace -n 'syscall:::entry /execname == "Xorg"/ {@[probefunc] = count(); } tick-5sec {printa(@); clear(@);}'

CODE:

dtrace: description 'syscall:::entry ' matched 227 probes
CPU     ID                    FUNCTION:NAME
  0  36588                       :tick-5sec
  writev                                                           20
  lwp_sigmask                                                      38
  setcontext                                                       38
  setitimer                                                        75
  read                                                            422
  pollsys                                                         426

pS: some time later I'll hopefully write more about what DTrace and D language are

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Wednesday, November 24. 2004

One more useful DTrace command line