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| <html><head><title>WebAssembly: JavaScript binding profiling</title> | |
| <script> | |
| onload = function() { | |
| var textarea = document.getElementById("textarea"); | |
| var log = function(message) { | |
| var now = performance.now(); | |
| textarea.value += (now - time).toFixed(3) + ": " + message + "\n"; | |
| time = performance.now(); | |
| }; | |
| var time = performance.now(); | |
| var c = 0; | |
| var importObj = { | |
| test: { | |
| jsf: function() { | |
| c++; | |
| } | |
| } | |
| }; | |
| var profiling = function(filename) {; | |
| log(filename + ": download start"); | |
| fetch(filename).then(function(response) { | |
| log("download end"); | |
| return response.arrayBuffer() | |
| }).then(function(bytes) { | |
| log("compile start"); | |
| return WebAssembly.compile(bytes); | |
| }).then(function(module) { | |
| log("compile end / instantiate start"); | |
| return WebAssembly.instantiate(module, importObj); | |
| }).then(function(result) { | |
| log("instantiate end / fib calc start"); | |
| var test = result.exports.fib; | |
| log("result:" + test(40)); | |
| if(c) { | |
| log("called JavaScript function " + c + " times"); | |
| } else { | |
| profiling("fib_binding.wasm"); | |
| } | |
| log("--------------------------"); | |
| }); | |
| }; | |
| profiling("fib.wasm"); | |
| } | |
| </script> | |
| </head><body><textarea id="textarea" cols="80" rows="20"></textarea></body></html> |
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| asm ` fib | |
| AH@A Ak Ak j |
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| (module | |
| (export "fib" (func $fib)) | |
| (func $fib (param $n i32) (result i32) | |
| (if | |
| (i32.lt_s | |
| (get_local $n) | |
| (i32.const 2) | |
| ) | |
| (return | |
| (i32.const 1) | |
| ) | |
| ) | |
| (return | |
| (i32.add | |
| (call $fib | |
| (i32.sub | |
| (get_local $n) | |
| (i32.const 2) | |
| ) | |
| ) | |
| (call $fib | |
| (i32.sub | |
| (get_local $n) | |
| (i32.const 1) | |
| ) | |
| ) | |
| ) | |
| ) | |
| ) | |
| ) |
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| asm ` ` testjsf fib | |
| ! AH@A Ak Akj |
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| (module | |
| (export "fib" (func $fib)) | |
| (import "test" "jsf" (func $test)) | |
| (func $fib (param $n i32) (result i32) | |
| (call $test) | |
| (if | |
| (i32.lt_s | |
| (get_local $n) | |
| (i32.const 2) | |
| ) | |
| (return | |
| (i32.const 1) | |
| ) | |
| ) | |
| (return | |
| (i32.add | |
| (call $fib | |
| (i32.sub | |
| (get_local $n) | |
| (i32.const 2) | |
| ) | |
| ) | |
| (call $fib | |
| (i32.sub | |
| (get_local $n) | |
| (i32.const 1) | |
| ) | |
| ) | |
| ) | |
| ) | |
| ) | |
| ) |
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