Fork of uranix/cpp-profiler to use c++11 chrono and allow to reset the profiler.
Procs:
- Single header
- Profile only what you need
- Profiling arbitrary scope
- Early profiling scope ending
Cons:
- Overhead ~300ns per call
- You need to explicitely mark what you want to profile
- May break in multithreaded environments
- Combines calls to the same function from different contexts, e.g. if
foo() -> baz(), bar() -> baz()thenbaz()will be shown only afterfoo() - Complex recursion (e.g.
rec1callsrec2andrec2callsrec1) may lead to incorrect total time for bothrec1andrec2.
function line calls tottime avgtime
main:demo.cpp............................................... 57 1 1.01s 1.01s
foo for loop:demo.cpp...................................... 60 1 586.26ms 586.26ms
double foo(int):demo.cpp.................................. 10 10 586.26ms 58.63ms
nop:demo.cpp............................................. 17 1000000 18.41ms 18.41ns
bar wait:demo.cpp.......................................... 66 1 200.43ms 200.43ms
bar:demo.cpp.............................................. 23 1 100.23ms 100.23ms
fibb:demo.cpp.............................................. 71 1 196.30ms 196.30ms
fibb:demo.cpp............................................. 31 177 196.02ms 1.11ms
rec1 + rec2:demo.cpp....................................... 76 1 27.78ms 27.78ms
rec1:demo.cpp............................................. 41 89 27.75ms 311.76us
rec2:demo.cpp............................................ 49 88 26.17ms 297.38us
function line calls tottime avgtime
main:demo.cpp............................................... 57 0 0.00ns -nans
foo for loop:demo.cpp...................................... 60 0 0.00ns -nans
double foo(int):demo.cpp.................................. 10 0 0.00ns -nans
nop:demo.cpp............................................. 17 0 0.00ns -nans
bar wait:demo.cpp.......................................... 66 0 0.00ns -nans
bar:demo.cpp.............................................. 23 0 0.00ns -nans
fibb:demo.cpp.............................................. 71 0 0.00ns -nans
fibb:demo.cpp.............................................. 31 15 16.26ms 1.08ms
rec1 + rec2:demo.cpp....................................... 76 0 0.00ns -nans
rec1:demo.cpp............................................. 41 0 0.00ns -nans
rec2:demo.cpp............................................ 49 0 0.00ns -nans
fibb:demo.cpp............................................... 87 1 16.29ms 16.29ms
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