我试图在我的程序中找到性能问题，因此通过分析来检测代码。gprof创建一个像这样的平面配置文件:Flatprofile:Eachsamplecountsas0.01seconds.%cumulativeselfselftotaltimesecondssecondscallsms/callms/callname27.974.104.10std::_Deque_iterator::_Deque_iterator(std::_Deque_iteratorconst&)6.965.121.02std::_Deque_iterator::difference_typestd::operator-