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May 26, 2019 18:41
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time node --trace-opt --trace-deopt -e ' | |
function bench() { | |
const loops = 3000; | |
const objSize = 4 * 3 | |
const i32StartOffset = loops * objSize | |
const i32Size = 4 * 2 | |
const ab = new ArrayBuffer(i32StartOffset + i32Size) | |
const f32 = new Float32Array(ab, 0) | |
const i32 = new Int32Array(ab, i32StartOffset) | |
const arr = [] | |
class Obj { | |
constructor(i) { | |
this.i = i | |
} | |
get thing() { | |
return f32[ab * 3]; | |
} | |
set thing(v) { | |
f32[ab * 3] = v | |
} | |
get thing2() { | |
return f32[ab * 3 + 1]; | |
} | |
set thing2(v) { | |
f32[ab * 3 + 1] = v | |
} | |
get thing3() { | |
return f32[ab * 3 + 2]; | |
} | |
set thing3(v) { | |
f32[ab * 3 + 2] = v | |
} | |
method() { | |
return this.thing3 > 0 | |
} | |
method2() { | |
return this.thing - this.thing2 | |
} | |
} | |
arr.length = loops | |
for (let i = 0; i < loops; i++) { | |
arr[i] = new Obj(i) | |
} | |
// set test | |
for (let i = 0; i < loops; i++) { | |
const obj = arr[i] | |
obj.thing = Math.ceil(Math.random() * 100) - 50 | |
obj.thing3 = Math.ceil(Math.random() * 100) - 50 | |
if (obj.method()) { | |
obj.thing2 = Math.ceil(Math.random() * 4) | |
} | |
} | |
// get test | |
for (let i = 0; i < loops; i++) { | |
const obj = arr[i] | |
i32[0] += Math.SQRT2 * obj.thing * obj.thing2 | |
if ((obj.method2() - obj.method() > 0)) | |
i32[1] += 4 | |
}; | |
} | |
console.time("A warmup") | |
for (let j = 0; j < 50; ++j) | |
bench() | |
console.timeEnd("A warmup") | |
console.time("A") | |
for (let j = 0; j < 500; ++j) | |
bench() | |
console.timeEnd("A") | |
' & time node --trace-opt --trace-deopt -e ' | |
function bench() { | |
const loops = 3000; | |
const objSize = 4 * 3 | |
const i32StartOffset = loops * objSize | |
const i32Size = 4 * 2 | |
const ab = new ArrayBuffer(i32StartOffset + i32Size) | |
const f32 = new Float32Array(ab, 0) | |
const i32 = new Int32Array(ab, i32StartOffset) | |
const arr = [] | |
class Obj { | |
constructor(i) { | |
this.i = i | |
} | |
getThing() { | |
return f32[ab * 3]; | |
} | |
setThing(v) { | |
f32[ab * 3] = v | |
} | |
getThing2() { | |
return f32[ab * 3 + 1]; | |
} | |
setThing2(v) { | |
f32[ab * 3 + 1] = v | |
} | |
getThing3() { | |
return f32[ab * 3 + 2]; | |
} | |
setThing3(v) { | |
f32[ab * 3 + 2] = v | |
} | |
method() { | |
return this.getThing3() > 0 | |
} | |
method2() { | |
return this.getThing() - this.getThing2() | |
} | |
} | |
arr.length = loops | |
for (let i = 0; i < loops; i++) { | |
arr[i] = new Obj(i) | |
} | |
// set test | |
for (let i = 0; i < loops; i++) { | |
const obj = arr[i] | |
obj.setThing(Math.ceil(Math.random() * 100) - 50) | |
obj.setThing3(Math.ceil(Math.random() * 100) - 50) | |
if (obj.method()) { | |
obj.setThing2(Math.ceil(Math.random() * 4)) | |
} | |
} | |
// get test | |
for (let i = 0; i < loops; i++) { | |
const obj = arr[i] | |
i32[0] += Math.SQRT2 * obj.getThing() * obj.getThing2() | |
if ((obj.method2() - obj.method() > 0)) | |
i32[1] += 4 | |
}; | |
} | |
console.time("B warmup") | |
for (let j = 0; j < 50; ++j) | |
bench() | |
console.timeEnd("B warmup") | |
console.time("B") | |
for (let j = 0; j < 500; ++j) | |
bench() | |
console.timeEnd("B")'& time node --trace-opt --trace-deopt -e ' | |
function bench() { | |
const loops = 3000; | |
const objSize = 4 * 3 | |
const i32StartOffset = loops * objSize | |
const i32Size = 4 * 2 | |
const ab = new ArrayBuffer(i32StartOffset + i32Size) | |
const f32 = new Float32Array(ab, 0) | |
const i32 = new Int32Array(ab, i32StartOffset) | |
class Obj { | |
constructor(i) { | |
this.i = i | |
} | |
get thing() { | |
return f32[ab * 3]; | |
} | |
set thing(v) { | |
f32[ab * 3] = v | |
} | |
get thing2() { | |
return f32[ab * 3 + 1]; | |
} | |
set thing2(v) { | |
f32[ab * 3 + 1] = v | |
} | |
get thing3() { | |
return f32[ab * 3 + 2]; | |
} | |
set thing3(v) { | |
f32[ab * 3 + 2] = v | |
} | |
method() { | |
return this.thing3 > 0 | |
} | |
method2() { | |
return this.thing - this.thing2 | |
} | |
} | |
// set test | |
for (let i = 0; i < loops; i++) { | |
new Obj(i).thing = Math.ceil(Math.random() * 100) - 50 | |
new Obj(i).thing3 = Math.ceil(Math.random() * 100) - 50 | |
if (new Obj(i).method()) { | |
new Obj(i).thing2 = Math.ceil(Math.random() * 4) | |
} | |
} | |
// get test | |
for (let i = 0; i < loops; i++) { | |
i32[0] += Math.SQRT2 * new Obj(i).thing * new Obj(i).thing2 | |
if ((new Obj(i).method2() - new Obj(i).method() > 0)) | |
i32[1] += 4 | |
}; | |
} | |
console.time("C warmup") | |
for (let j = 0; j < 50; ++j) | |
bench() | |
console.timeEnd("C warmup") | |
console.time("C") | |
for (let j = 0; j < 500; ++j) | |
bench() | |
console.timeEnd("C")'& |
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