Messages in this thread |  | | | Date | Thu, 10 Mar 2011 13:33:06 -0500 | | From | Steven Rostedt <> | | Subject | Re: [RFC] Proposal for ptrace improvements |
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On Wed, Mar 09, 2011 at 11:28:55AM +0100, Tejun Heo wrote: > > If someone is looking for completely transparent light weight > monitoring, there is a much better fitting mechanism for that and it > works frigging well and provides much better insight into what's going > on with the system. > > Use tracing for tracing. >
Hmm, what tracing utility exactly? If I want to trace a running task, that I have the debug info on it where I would have the ability to insert probes, which utility would you recommend?
strace and gdb use ptrace
ftrace focuses on the kernel.
I don't think perf has a good way to trace userspace yet.
I haven't taken a good look at lttng, but I think it has some sort of library that is attached to the process. Is there a better way than attching a library to said task.
systemtap may have ways too, but I think it depends on utrace which has pretty much been nak'd in the kernel.
-- Steve
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