From 4a39a38967905c674bfec1c1637f11f2561c2481 Mon Sep 17 00:00:00 2001
From: David Sehnal <david.sehnal@gmail.com>
Date: Tue, 17 Oct 2017 14:13:33 +0200
Subject: [PATCH] iterator benchmarks
---
package-lock.json | Bin 141339 -> 165468 bytes
package.json | 10 +-
src/perf-tests/iterators.ts | 227 ++++++++++++++++++++++++++++++++++++
tsconfig.json | 3 +-
4 files changed, 235 insertions(+), 5 deletions(-)
create mode 100644 src/perf-tests/iterators.ts
diff --git a/package-lock.json b/package-lock.json
index 65edb5b9cf7b351137a82ca276ff669f2ff6c1ec..fbf52d4b90d0f4e49c73635a1e0e111e5f3bff45 100644
GIT binary patch
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diff --git a/package.json b/package.json
index ae74e31e7..a024c3177 100644
--- a/package.json
+++ b/package.json
@@ -13,7 +13,7 @@
"test": "./node_modules/.bin/jest",
"dist": "./node_modules/.bin/uglifyjs build/js/molio.dev.js -cm > dist/molio.js && cp build/js/molio.esm.js dist/molio.esm.js",
"script": "./node_modules/.bin/rollup build/js/src/script.js -e fs -f cjs -o build/js/script.js",
- "runscript": "npm run script && node build/js/script.js",
+ "runscript": "node build/js/src/script.js",
"download-dics": "./node_modules/.bin/download -o build/dics http://mmcif.wwpdb.org/dictionaries/ascii/mmcif_pdbx_v50.dic && ./node_modules/.bin/download -o build/dics http://mmcif.wwpdb.org/dictionaries/ascii/mmcif_ddl.dic"
},
"jest": {
@@ -29,8 +29,10 @@
"author": "",
"license": "MIT",
"devDependencies": {
- "@types/jest": "^21.1.2",
- "@types/node": "^8.0.34",
+ "@types/benchmark": "^1.0.30",
+ "@types/jest": "^21.1.3",
+ "@types/node": "^8.0.41",
+ "benchmark": "^2.1.4",
"download-cli": "^1.0.5",
"jest": "^21.2.1",
"rollup": "^0.50.0",
@@ -42,7 +44,7 @@
"ts-jest": "^21.1.2",
"tslint": "^5.7.0",
"typescript": "^2.5.3",
- "uglify-js": "^3.1.3",
+ "uglify-js": "^3.1.4",
"util.promisify": "^1.0.0"
},
"dependencies": {}
diff --git a/src/perf-tests/iterators.ts b/src/perf-tests/iterators.ts
new file mode 100644
index 000000000..78cfac0a3
--- /dev/null
+++ b/src/perf-tests/iterators.ts
@@ -0,0 +1,227 @@
+import * as B from 'benchmark'
+
+function createData(n: number) {
+ const data = [];//new Int32Array(n);
+ let last = (15 * Math.random()) | 0;
+ for (let i = 0; i < n; i++) {
+ data[i] = last;
+ last += (15 * Math.random()) | 0;
+ }
+ return data;
+}
+
+namespace Iterators {
+ const data = createData(100000);
+
+ export function forLoop() {
+ let sum = 0;
+ for (let i = 0, _i = data.length; i < _i; i++) {
+ sum += data[i];
+ }
+ return sum;
+ }
+
+ export function forOf() {
+ let sum = 0;
+ for (const e of data) {
+ sum += e;
+ }
+ return sum;
+ }
+
+ export function forEach() {
+ const ctx = { sum: 0 };
+ data.forEach(function(this: typeof ctx, v: number) { this.sum += v }, ctx);
+ return ctx.sum;
+ }
+
+ export function forEachAllParams() {
+ const ctx = { sum: 0 };
+ data.forEach(function(this: typeof ctx, v: number, _: any, __: any) { this.sum += v }, ctx);
+ return ctx.sum;
+ }
+
+ export function forEachClosure() {
+ let sum = 0;
+ data.forEach(v => sum += v);
+ return sum;
+ }
+
+ export function forEachClosureAll() {
+ let sum = 0;
+ data.forEach((v, _, __) => sum += v);
+ return sum;
+ }
+
+
+ export function forEachClosureAllFunction() {
+ let sum = 0;
+ data.forEach(function (v, _, __) { sum += v });
+ return sum;
+ }
+
+ interface ES6Iterator {
+ [Symbol.iterator](): ES6Iterator,
+ done: boolean;
+ value: number;
+ next(): { done: boolean, value: number }
+ reset(data: any[]): ES6Iterator;
+ }
+
+ class _MutableES6Iterator implements ES6Iterator {
+ done = true;
+ value = 0;
+
+ private xs: any[] = void 0 as any;
+ private index: number = -1;
+ private length: number = 0;
+
+ [Symbol.iterator]() { return this };
+
+ next() {
+ const index = ++this.index;
+ if (index < this.length) this.value = this.xs[index];
+ else this.done = true;
+ return this;
+ }
+
+ reset(xs: any[]) {
+ this.value = xs[0];
+ this.length = xs.length;
+ this.done = false;
+ this.xs = xs;
+ this.index = -1;
+ return this;
+ }
+ }
+
+ class _ImmutableES6Iterator implements ES6Iterator {
+ done = true;
+ value = 0;
+
+ private xs: any[] = void 0 as any;
+ private index: number = -1;
+ private length: number = 0;
+
+ [Symbol.iterator]() { return this };
+
+ next() {
+ const index = ++this.index;
+ if (index < this.length) this.value = this.xs[index];
+ else this.done = true;
+ return { done: this.done, value: this.value };
+ }
+
+ reset(xs: any[]) {
+ this.value = xs[0];
+ this.length = xs.length;
+ this.done = false;
+ this.xs = xs;
+ this.index = -1;
+ return this;
+ }
+ }
+
+ export function mutableES6Iterator() {
+ const it = new _MutableES6Iterator();
+ let sum = 0;
+ for (let e = it.reset(data).next().value; !it.done; e = it.next().value) {
+ sum += e;
+ }
+ return sum;
+ }
+
+ // export function mutableES6IteratorOf() {
+ // const it = new _ImmutableES6Iterator();
+ // let sum = 0;
+ // for (const e of it.reset(data)) {
+ // sum += e;
+ // }
+ // return sum;
+ // }
+
+ export function immutableES6Iterator() {
+ const it = new _ImmutableES6Iterator();
+ let sum = 0;
+ it.reset(data);
+ while (true) {
+ const { value, done } = it.next();
+ if (done) break;
+ sum += value;
+ }
+ return sum;
+ }
+
+ // export function immutableES6IteratorOf() {
+ // const it = new _MutableES6Iterator();
+ // let sum = 0;
+ // for (const e of it.reset(data)) {
+ // sum += e;
+ // }
+ // return sum;
+ // }
+
+ interface MutableIterator {
+ done: boolean;
+ next(): number;
+ start(data: any[]): number;
+ }
+
+ class _MutableIterator implements MutableIterator {
+ done = true;
+
+ private xs: any[] = void 0 as any;
+ private index: number = -1;
+ private length: number = 0;
+
+ next() {
+ const index = ++this.index;
+ if (index < this.length) return this.xs[index];
+ else {
+ this.done = true;
+ return 0;
+ }
+ }
+
+ start(xs: any[]) {
+ this.length = xs.length;
+ this.done = !this.length;
+ this.xs = xs;
+ this.index = 0;
+ return this.done ? 0 : this.xs[0];
+ }
+ }
+
+ export function mutableIterator() {
+ const it = new _MutableIterator();
+ let sum = 0;
+ for (let e = it.start(data); !it.done; e = it.next()) {
+ sum += e;
+ }
+ return sum;
+ }
+}
+
+
+const suite = new B.Suite();
+
+suite
+ .add('for', () => Iterators.forLoop())
+ .add('forOf', () => Iterators.forOf())
+ .add('forEach', () => Iterators.forEach())
+ .add('forEach all params', () => Iterators.forEachAllParams())
+ .add('forEachClosure', () => Iterators.forEachClosure())
+ .add('forEachClosure all', () => Iterators.forEachClosureAll())
+ .add('forEachClosure all function', () => Iterators.forEachClosureAllFunction())
+ .add('mutableIterator ES6', () => Iterators.mutableES6Iterator())
+ //.add('mutableIteratorOf ES6', () => Iterators.mutableES6IteratorOf())
+ .add('immutableIterator ES6', () => Iterators.immutableES6Iterator())
+ //.add('immutableIteratorOf ES6', () => Iterators.immutableES6IteratorOf())
+ .add('mutableIterator', () => Iterators.mutableIterator())
+ .on('cycle', (e: any) => {
+ console.log(String(e.target));
+ })
+ // .on('complete', function (this: any) {
+ // console.log('Fastest is ' + this.filter('fastest').map('name'));
+ // })
+ .run();
\ No newline at end of file
diff --git a/tsconfig.json b/tsconfig.json
index 21016d562..be84a2ed2 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -1,12 +1,13 @@
{
"compilerOptions": {
- "target": "es6",
+ "target": "es5",
"alwaysStrict": true,
"noImplicitAny": true,
"noImplicitThis": true,
"sourceMap": false,
"noUnusedLocals": true,
"strictNullChecks": true,
+ //"downlevelIteration": true,
"lib": [ "es6", "dom" ],
"outDir": "build/js/src"
},
--
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