Performance probes

Phil Mayers p.mayers at
Tue Oct 15 13:20:52 CEST 2013

Would a patch adding dtrace/systemtap-compatible source probes be looked 
upon favourably?

I'm fiddling with the debuginfo-based stap stuff to try and get a 
histogram of our ntlm_auth timings, but it strikes me that the 
source-based stuff could be very useful indeed; in particular 
appropriate DTRACE_PROBEx statements could let us time individual 
requests from receive to reply, with minimal performance overhead.


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