Evaluation of CPU profiling tools: gperftools, Valgrind and gprof (2015)

Re:Evaluation of CPU profiling tools: gperftools, Valgrind a... by frumiousirc on Monday November 11, 2019 @07:21AM (#21504217)

A problem with google perftools is the `SIGPROF` signal used in sampling will interrupt polling such as used in ZeroMQ. Otherwise, it is a good tool in the toolbox.

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Re:Evaluation of CPU profiling tools: gperftools, Valgrind a... by vectorEQ on Monday November 11, 2019 @10:38AM (#21505669)

that is/was a problem with zeroMQ, not gperftools:

   27    SIGPROF      terminate process    profiling timer alarm (see setitimer(2))

its use is specifically what that signal is for.

Additionally, it seems fixed in zeroMQ for some things already in 2016... so i doubt thats still valid issue.

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