gprof

respective characters for each option, and, just like most Linux commands, you cannot separate the characters with a group of options. for example, the following two commands are different: Gcc-p-g test. c Gcc-PG test. c The First Command tells GCC to compile test. in C, the profile information is created for the prof command and the debugging information is added to the executable file. the second command only tells GCC to create profiling information for the

Grof IntroductionGprof is the GNU Profiler tool. You can display the "flat profile" of the program's operation, including the number of calls per function, and the processor time consumed by each function. You can also display the call graph, including the function's invocation relationship, and how long each function call takes. You can also display "source code for Comments", a copy of your program's source codes, and mark the number of times each line of code in your program is executed. Grof

Tool selectionHere's a reference to the http://gernotklingler.com/blog/gprof-valgrind-gperftools-evaluation-tools-application-level-cpu-profiling-linux/blog, It mainly analyzes the three Linux platform mainstream hot analysis tools, respectively, GNU Gprof, Valgrind and Google Perftools, the main features of the three tools are the following table: Tools Using commands Whether you ne

options available. many of these options may never be used, but some of the main options will be frequently used. many GCC options include more than one character. Therefore, you must specify the respective characters for each option, and, just like most Linux commands, you cannot separate the characters with a group of options. for example, the following two commands are different: Gcc-p-g test. c Gcc-pg test. c The First Command tells GCC to compile test. in c, the profile information is cre

line option will be executed on each given file on the command line. The next section describes the options you will most commonly use. GCC options GCC has more than 100 compilation options available. many of these options may never be used, but some of the main options will be frequently used. many GCC options include more than one character. therefore, you must specify the respective characters for each option, and, just like most Linux commands, you cannot separate the characters with a gr

more than one character. Therefore, you must specify the respective characters for each option, and, just like most Linux commands, you cannot separate the characters with a set of options. For example, the following two commands are different:Gcc-p-g test. c Gcc-pg test. cThe First Command tells GCC to create profile information for the prof command during test. c compilation and add the debugging information to the executable file. The second command only tells GCC to create profiling informa

more than 100 compilation options available. Many of these options may never be used, but some of the main options will be frequently used. Many GCC options include more than one character. Therefore, you must specify the respective characters for each option, and, just like most Linux commands, you cannot separate the characters with a set of options. For example, the following two commands are different: Gcc-p-g test. c Gcc-pg test. c The First Command tells GCC to create profile informatio

sound complicated, but it is not. The following is an example. 19 display_list {prcc. c 1056}20 show_all_lists {prcc. c 1070}21 exit {}22 main {prcc. c 70}23 show_all_lists {prcc. c 1070}24 usage {prcc. c 59}...74 printf {}75 display_list {prcc. c 1056}76 maketag {prcc. c 487}77 show_all_lists {prcc. c 1070}78 main {prcc. c 70}...99 usage {prcc. c 59}100 main {prcc. c 70} For example, this tells us that the exit function has main, show_all_lists, and usage. Use prof/

respective characters for each option, and, just like most Linux commands, you cannot separate the characters with a group of options. for example, the following two commands are different:Gcc-p-g test. cGcc-PG test. cThe First Command tells GCC to compile test. in C, the profile information is created for the prof command and the debugging information is added to the executable file. the second command only tells GCC to create profiling information for the

complicated, but it's not actually the case. Here is an example. display_list {PRCC.C 1056}show_all_lists {PRCC.C 1070}Exit {}Main {PRCC.C 70}show_all_lists {PRCC.C 1070}Usage {PRCC.C 59}...The "printf" {}display_list {PRCC.C 1056}Maketag {PRCC.C 487}show_all_lists {PRCC.C 1070}Main {PRCC.C 70}...Usage {PRCC.C 59}Main {PRCC.C 70} For example, this tells us that the function to call exit has main,show_all_lists and usage. Performing performance tests with Prof/

-party tools (for example, text Tools, string tools). It can be said that good business support and fool-type development are their main advantages.Under Linux, development tools are cut into separate gadgets. Each deal with a different problem. For example, the editor (Emacs, VIM) is used for editing programs, the debugger (GDB) is used to debug programs, the compiler (GCC) is used to compile and link programs, the Performance analysis tool (Gcov, gprof