https://community.intel.com/t5/Intel-Moderncode-for-Parallel/how-to-get-the-wall-time-of-special-code-line/m-p/1131023#M7691 <P>how to get the wall time of special code line?</P> Tue, 29 Oct 2019 08:11:19 GMT sun__lei 2019-10-29T08:11:19Z https://community.intel.com/t5/Intel-Moderncode-for-Parallel/how-to-get-the-wall-time-of-special-code-line/m-p/1131023#M7691 <P>how to get the wall time of special code line?</P> Tue, 29 Oct 2019 08:11:19 GMT https://community.intel.com/t5/Intel-Moderncode-for-Parallel/how-to-get-the-wall-time-of-special-code-line/m-p/1131023#M7691 sun__lei 2019-10-29T08:11:19Z https://community.intel.com/t5/Intel-Moderncode-for-Parallel/how-to-get-the-wall-time-of-special-code-line/m-p/1131024#M7692 <P>Here's an example:</P> <PRE class="brush:cpp; class-name:dark;">std::clock_t start = std::clock(); // do some work std::clock_t finish = std::clock(); std::double_t time_span = finish - start; std::cout &lt;&lt; "Execution time: " &lt;&lt; time_span &lt;&lt; "\n";</PRE> <P>Good luck.</P> Sun, 05 Apr 2020 09:56:07 GMT https://community.intel.com/t5/Intel-Moderncode-for-Parallel/how-to-get-the-wall-time-of-special-code-line/m-p/1131024#M7692 ArthurRatz 2020-04-05T09:56:07Z https://community.intel.com/t5/Intel-Moderncode-for-Parallel/how-to-get-the-wall-time-of-special-code-line/m-p/1214088#M8153 <P>At least you may use a partially ordered RDTSCP instruction.</P> <P>Be aware, that assembly implementation may run in the "shadow" of RDTSCP instruction (i.e. execute faster (in terms of pipeline stage of execution, than RDTSCP instruction)</P> Thu, 01 Oct 2020 15:12:28 GMT https://community.intel.com/t5/Intel-Moderncode-for-Parallel/how-to-get-the-wall-time-of-special-code-line/m-p/1214088#M8153 Bernard 2020-10-01T15:12:28Z