Dan Schatzberg 41faae94c0 Add lightweight tracing infrastructure ... Summary: In order to get better insights into where time is spent on various requests, some tracing infrastructure is helpful. This will record tracepoints into a per-thread ring-buffer which can then be dumped out-of-band. The trace format is quite simple, a trace is composed of blocks with begin and end points and each block may have a parent block. We can then translate this format to many other formats as we desire. Reviewed By: chadaustin, strager Differential Revision: D10384071 fbshipit-source-id: f9e0f11521c68b96ab40d517c7a83cf89375b101		2018-11-01 08:09:19 -07:00
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test	Add lightweight tracing infrastructure	2018-11-01 08:09:19 -07:00
Tracing.cpp	Add lightweight tracing infrastructure	2018-11-01 08:09:19 -07:00
Tracing.h	Add lightweight tracing infrastructure	2018-11-01 08:09:19 -07:00