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SubjectLTTng 0.53 implements new generic tracing clock

I've implemented a new timer-based generic tracing clock in LTTng 0.53.
It's only for architectures lacking proper TSC suppport. It is less
intrusive than the previous implementation and does not depend directly
on the jiffy variable. It should work better on NO_HZ systems. Only when
tracing is active, a timer will fire every jiffy.


Mathieu Desnoyers
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68

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