gskachkov

VMs tested:
"before" at /Users/Developer/Projects/Webkit2/WebKitBuild/before_patch/Release/jsc
"after" at /Users/Developer/Projects/Webkit2/WebKitBuild/es6_functions/Release/jsc

Collected 4 samples per benchmark/VM, with 4 VM invocations per benchmark. Ran 2 benchmark
iterations, and measured the total time of those iterations, for each sample. Emitted a call to
gc() between sample measurements. Used 4 benchmark iterations per VM invocation for warm-up. Used
the jsc-specific preciseTime() function to get microsecond-level timing. Reporting benchmark
execution times with 95% confidence intervals in milliseconds.

gskachkov

MacBook-Pro-Skachkov-2:Webkit2 Developer$  Tools/Scripts/run-jsc-benchmarks before:/Users/Developer/Projects/Webkit2/WebKitBuild/before_patch/Release/jsc after:/Users/Developer/Projects/Webkit2/WebKitBuild/es6_functions/Release/jsc --octane --benchmark="jquery|closure" --outer 10
VMs tested:
"before" at /Users/Developer/Projects/Webkit2/WebKitBuild/before_patch/Release/jsc
"after" at /Users/Developer/Projects/Webkit2/WebKitBuild/es6_functions/Release/jsc

Collected 10 samples per benchmark/VM, with 10 VM invocations per benchmark. Emitted a call to
gc() between sample measurements. Used 1 benchmark iteration per VM invocation for warm-up. Used
the jsc-specific preciseTime() function to get microsecond-level timing. Reporting benchmark
execution times with 95% confidence intervals in milliseconds.

gskachkov

#1
VMs tested:
"before" at /Users/Developer/Projects/Webkit2/WebKitBuild/before_patch/Release/jsc
"after" at /Users/Developer/Projects/Webkit2/WebKitBuild/es6_functions/Release/jsc

Collected 10 samples per benchmark/VM, with 10 VM invocations per benchmark. Emitted a call to
gc() between sample measurements. Used 1 benchmark iteration per VM invocation for warm-up. Used
the jsc-specific preciseTime() function to get microsecond-level timing. Reporting benchmark
execution times with 95% confidence intervals in milliseconds.

gskachkov

VMs tested:
"without_poc" at /Users/Developer/Projects/Webkit2/WebKitBuild/without_poc/Release/jsc
"poc_af" at /Users/Developer/Projects/Webkit2/WebKitBuild/poc_af/Release/jsc

Collected 4 samples per benchmark/VM, with 4 VM invocations per benchmark. Ran 10 benchmark
iterations, and measured the total time of those iterations, for each sample. Emitted a call to
gc() between sample measurements. Used 50 benchmark iterations per VM invocation for warm-up. Used
the jsc-specific preciseTime() function to get microsecond-level timing. Reporting benchmark
execution times with 95% confidence intervals in milliseconds.

gskachkov

var promise = new Promise(function(resolve, reject) { … } );

gskachkov

// Create promise
var promise = new Promise(function (resolve) {
  //Resolve promise in 50ms with string 'success'
  setTimeout(function () { resolve('success'); }, 50);
});

// Handle successful resolve of promise
promise.then(function (result) { 
  console.log(result); // Print: success
});

gskachkov

var bar = new Promise(function (resolve) {
  setTimeout(function () { reject('error'); }, 50);
});

bar.then(function() {}, function (reject) { 
  console.log('reject:', reject); 
}); // reject:error

bar.catch(function (reject) { 
  console.log('catch:', reject); 

gskachkov

var getPromise = (value, delay) => {
  return new Promise(resolve => {
    setTimeout(() => resolve(value), delay);
  });
};

var promise = getPromise('start value', 150);

promise
.then(result => {

gskachkov

var promiseImmediate = Promise.resolve('Immediate value');
promiseImmediate.then(result => console.log('promiseImmediate:', result)); 
// 'promiseImmediate: Immediate value' will visible imidiatly 

var resolver = {};
var promise = new Promise(resolve => { resolver.resolve = resolve; });

var promiseDefferred = Promise.resolve(promise);
promiseDefferred.then(result => console.log('promiseDefferred:', result)); 
// No any text

gskachkov

var promiseImmediate = Promise.reject('Immediate value');
promiseImmediate.then(
  result => console.log('promiseImmediate success:', result), 
  error => console.log('promiseImmediate fail:', error)
); // promiseImmediate fail: Immediate value

promiseImmediate.catch(error => console.log('promiseImmediate catch:', error));

var resolver = {};
var promise = new Promise((resolve, reject) => { resolver.reject = reject; });