ana::ProfilerSupport Class Reference

Support for the –prof commandline option. More...

Public Member Functions
	~ProfilerSupport ()

Detailed Description

Support for the –prof commandline option.

Definition at line 13 of file ProfilerSupport.cxx.

Constructor & Destructor Documentation

ana::ProfilerSupport::~ProfilerSupport ( )

inline

Definition at line 16 of file ProfilerSupport.cxx.

    {
      if(getenv("CPUPROFILE")){
        char tmp[] = "/tmp/XXXXXX.pdf";
        mkstemps(tmp, 4);

        const char* pd = getenv("GPERFTOOLS_DIR");
        if(!pd){
          std::cout << "Couldn't find pprof executable" << std::endl;
          return;
        }
        const std::string perfdir = pd;

        const std::string pprof = perfdir + "/bin/pprof";

        // pprof needs both of these set
        setenv("PATH", (perfdir+"/bin/:"+std::string(getenv("PATH"))).c_str(), 1);
        setenv("LD_LIBRARY_PATH", (perfdir+"/lib/:"+std::string(getenv("LD_LIBRARY_PATH"))).c_str(), 1);

        std::cout << "Creating profile. This can take some time..." << std::endl;
        const std::string cmd1 = pprof + " --pdf `which root.exe` " + std::string(getenv("CPUPROFILE")) + " > " + tmp;
        std::cout << cmd1 << std::endl;
        const int ret = system(cmd1.c_str());
        if(ret != 0) return;

        std::cout << "Displaying profile..." << std::endl;
        const std::string cmd2 = "evince "+std::string(tmp);
        std::cout << cmd2 << std::endl;
        system(cmd2.c_str());
      }
    }

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The documentation for this class was generated from the following file:

• ProfilerSupport.cxx