променени са 1 файла, в които са добавени 16 реда и са изтрити 28 реда
+ 16
- 28
src/examples/perf2.js
Целия файл
| @@ -8,25 +8,16 @@ class [[cheerp::jsexport]] JsBridge | |||
| { | |||
| public: | |||
| JsBridge() = default; | |||
| void sort(client::Float64Array* ar) | |||
| { | |||
| // copy all the numbers | |||
| std::vector<double> test; | |||
| test.reserve(ar->get_length()); | |||
| for(size_t i=0;i<ar->get_length();i++) { | |||
| test.push_back((*ar)[i]); | |||
| } | |||
| void sort(client::Float64Array* ar) | |||
| { | |||
| // get a plain c pointer | |||
| double* ptr = &(*ar)[0]; | |||
| size_t len = ar->get_length(); | |||
| // sort them | |||
| std::sort(std::begin(test), std::end(test), std::less<double>()) ; | |||
| // copy them back | |||
| for(size_t i=0;i<ar->get_length();i++) { | |||
| (*ar)[i] = test[i]; | |||
| } | |||
| } | |||
| std::sort(ptr, ptr + len, std::less<double>()) ; | |||
| } | |||
| }; | |||
| void webMain() { | |||
| } | |||
| @@ -37,18 +28,17 @@ const html_code = ` | |||
| <head> | |||
| <script> | |||
| function benchmark(func) { | |||
| var start = new Date().getTime(); | |||
| let start = new Date().getTime(); | |||
| func(); | |||
| var time = new Date().getTime() - start; | |||
| return time; | |||
| return new Date().getTime() - start; | |||
| } | |||
| // Please note that running this might take a while! (but I expect < 30s on an average PC) | |||
| for (var n = 10; n <= 10000000; n *= 10) { | |||
| for (let n = 10; n <= 10000000; n *= 10) { | |||
| document.write("<strong>Test for N=",n,"</strong><BR>"); | |||
| var some_array = [], some_array2 = []; | |||
| var time = benchmark(function () { | |||
| let some_array = [], some_array2 = [], | |||
| time = benchmark(function () { | |||
| for (var i = 0; i < n; ++i) { | |||
| var num = Math.random(); | |||
| some_array.push(num); | |||
| @@ -63,7 +53,7 @@ const html_code = ` | |||
| jsBridge.sort(some_array2) | |||
| ); | |||
| document.write("C++: ",some_array2.slice(0, 1), ", took: ",(time/1000.0)," secs<BR>"); | |||
| // JS | |||
| time = benchmark(_ => | |||
| some_array.sort((a, b) => a - b) // lambda required for sorting numerically instead of alphabetically | |||
| @@ -72,8 +62,6 @@ const html_code = ` | |||
| } | |||
| </script> | |||
| </head> | |||
| <body> | |||
| </body> | |||
| </html> | |||
| `.trim(); | |||
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