gprof

问题 How to view output of gprof in kcachegrind? Is here a converter from gcc's gmon.out into callgrind.out? 回答1: Currently, this seems not to be supported. It is mentioned on Kcachegrind's whishlist, though. 来源： https://stackoverflow.com/questions/7274095/view-gprof-output-in-kcachegrind

来源： https://stackoverflow.com/questions/39041871/missing-function-from-gprof-output

问题 I've been using the gprof profiler in conjunction with g++ . I have a function in my code which encapsulates several sections of behaviour which are related enough to the primary function that it would not make sense to split them off into their own functions. I'd like to know how much time is spent in each of these areas of code. So, if you imagine the code looks like function(){ A A A B B B C C C } where A, B, and C represent particular sections of code I'm interested in, is there a way to

问题 When I run gprof on my C program it says no time accumulated for my program and shows 0 time for all function calls. However it does count the function calls. How do I modify my program so that gprof will be able to count how much time something takes to run? 回答1: Did you specify -pg when compiling? http://sourceware.org/binutils/docs-2.20/gprof/Compiling.html#Compiling Once it is compiled, you run the program and then run gprof on the binary. E.g.: test.c: #include <stdio.h> int main () {

问题 When I run gprof on my C program it says no time accumulated for my program and shows 0 time for all function calls. However it does count the function calls. How do I modify my program so that gprof will be able to count how much time something takes to run? 回答1: Did you specify -pg when compiling? http://sourceware.org/binutils/docs-2.20/gprof/Compiling.html#Compiling Once it is compiled, you run the program and then run gprof on the binary. E.g.: test.c: #include <stdio.h> int main () {

问题 I am interested in getting the profiling of some number crunching program. I compiled it with -g and -pg options and linked it and got it gmon.out. After reading the info (plain text) it looks a bit ugly. I wonder if there are some open source tools for getting a graphical representation of the 10 functions where the program spends the most of the time as well as a flux diagram. Thanks 回答1: Gprof2Dot by jrfonseca is a tool that converts the output of many profilers, amongst which gprof, into

问题 I am interested in getting the profiling of some number crunching program. I compiled it with -g and -pg options and linked it and got it gmon.out. After reading the info (plain text) it looks a bit ugly. I wonder if there are some open source tools for getting a graphical representation of the 10 functions where the program spends the most of the time as well as a flux diagram. Thanks 回答1: Gprof2Dot by jrfonseca is a tool that converts the output of many profilers, amongst which gprof, into

问题 As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance. Closed 7 years ago . What other programs do the same thing as gprof? 回答1: Valgrind has an instruction-count profiler with a very nice visualizer called

问题 As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance. Closed 7 years ago . What other programs do the same thing as gprof? 回答1: Valgrind has an instruction-count profiler with a very nice visualizer called

问题 Alternative title: Implement min heap with something faster than std::priority_queue . grpof gave me: time seconds seconds calls s/call s/call name 84.12 105.54 105.54 320000 0.00 0.00 _ZN3RKDI24Division_Euclidean_spaceIfEE2nnEjRKSt6vectorIfSaIfEERKfRS3_ISt4pairIfiESaISB_EERiiPjRSt14priority_queueISt5tupleIJfiiEES3_ISJ_SaISJ_EESt7greaterISJ_EES9_RKjS7_S7_i which I believe is my only std::priority_queue used in the project. The 'Division_Euclidean_space' part confuses me, since it's a class