far, this is what I have learned:
- It runs a stop-the-world sampler. In other words, it periodically
stops the program being profiled to collect information.
- It uses gperftools <http://code.google.com/p/gperftools/> underneath.
Besides a general overview, here are some specific questions I would like
- Is pprof an "event based profiler
or "instrumentation profiler
From what I understand, these profilers modify the way a program runs and
collect samples via those modifications
- At what 'level' in the OS does pprof profile? Does it profile the
kernal like SystemTap <https://sourceware.org/systemtap/> or perf
- Is pprof safe to run on a high-traffic production server?
I am asking this question to reason about the overhead introduced by using
pprof on a Go server.
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