From b92d897803cdeac5d55caa1f0f48293112fbeba9 Mon Sep 17 00:00:00 2001
From: David Sehnal <david.sehnal@gmail.com>
Date: Sat, 9 Dec 2017 00:43:30 +0100
Subject: [PATCH] task yield tests
---
src/mol-task/util/immediate.ts | 4 +-
src/perf-tests/tasks.ts | 129 +++++++++++++++++++++++++++++++++
2 files changed, 132 insertions(+), 1 deletion(-)
create mode 100644 src/perf-tests/tasks.ts
diff --git a/src/mol-task/util/immediate.ts b/src/mol-task/util/immediate.ts
index 411f82db3..df8b2f764 100644
--- a/src/mol-task/util/immediate.ts
+++ b/src/mol-task/util/immediate.ts
@@ -181,7 +181,9 @@ const immediateActions = (function () {
setImmediate: (handler: any, ...args: any[]) => window.setImmediate(handler, ...args as any),
clearImmediate: (handle: any) => window.clearImmediate(handle)
};
- } else return { setImmediate, clearImmediate }
+ } else {
+ return { setImmediate, clearImmediate }
+ }
}
return createImmediateActions();
}());
diff --git a/src/perf-tests/tasks.ts b/src/perf-tests/tasks.ts
new file mode 100644
index 000000000..38c8b9885
--- /dev/null
+++ b/src/perf-tests/tasks.ts
@@ -0,0 +1,129 @@
+import * as B from 'benchmark'
+import now from 'mol-task/util/now'
+import Immedite from 'mol-task/util/immediate'
+
+export namespace Tasks {
+ export class Yielding {
+ lastUpdated = 0;
+ yield(): Promise<void> | void {
+ const t = now();
+ if (t - this.lastUpdated < 250) return;
+ this.lastUpdated = t;
+ return Immedite.immediatePromise();
+ }
+ }
+
+ export class CheckYielding {
+ lastUpdated = 0;
+
+ get needsYield() {
+ return now() - this.lastUpdated > 250;
+ }
+
+ yield(): Promise<void> {
+ this.lastUpdated = now();
+ return Immedite.immediatePromise();
+ }
+ }
+
+ export async function yielding() {
+ console.time('yielding');
+ const y = new Yielding();
+ let ret = 0;
+ for (let i = 0; i < 1000000; i++) {
+ ret += +(i.toString() + i.toString());
+ if (i % 10000 === 0) await y.yield();
+ }
+ console.timeEnd('yielding');
+ console.log(ret);
+ return ret;
+ }
+
+ export async function yielding1() {
+ console.time('yielding1');
+ const y = new Yielding();
+ let ret = 0;
+ let yy: any;
+ for (let i = 0; i < 1000000; i++) {
+ ret += +(i.toString() + i.toString());
+ if (i % 10000 === 0 && (yy = y.yield())) await yy;
+ }
+ console.timeEnd('yielding1');
+ console.log(ret);
+ return ret;
+ }
+
+ export async function testYielding() {
+ console.time('check yielding');
+ const y = new CheckYielding();
+ let ret = 0;
+ for (let i = 0; i < 1000000; i++) {
+ ret += +(i.toString() + i.toString());
+ if (i % 10000 === 0 && y.needsYield) await y.yield();
+ }
+ console.timeEnd('check yielding');
+ console.log(ret);
+ return ret;
+ }
+
+ export async function baseline() {
+ console.time('baseline');
+ let ret = 0;
+ for (let i = 0; i < 1000000; i++) {
+ ret += +(i.toString() + i.toString());
+ }
+ console.timeEnd('baseline');
+ console.log(ret);
+ return ret;
+ }
+
+ export async function testImmediate() {
+ console.time('immediate');
+ let ret = 0;
+ const y = new CheckYielding();
+ for (let i = 0; i < 1000000; i++) {
+ //ret += +(i.toString() + i.toString());
+ if (i % 10000 === 0) await y.yield();
+ }
+ console.timeEnd('immediate');
+ console.log(ret);
+ return ret;
+ }
+
+ export function run() {
+ const suite = new B.Suite();
+ suite
+ .add(`yielding`, async () => { return await yielding() })
+ //.add(`test yielding`, () => testYielding().then(() => { }))
+ .on('cycle', (e: any) => console.log(String(e.target)))
+ .run();
+ }
+}
+
+(async function() {
+ // await Tasks.testImmediate();
+ // await Tasks.testImmediate();
+
+ await Tasks.baseline();
+ await Tasks.yielding();
+ await Tasks.yielding1();
+ await Tasks.testYielding();
+ await Tasks.baseline();
+ await Tasks.yielding();
+ await Tasks.yielding1();
+ await Tasks.testYielding();
+}())
+
+// console.time('test')
+// Tasks.yielding();
+// console.timeEnd('test')
+// console.time('test')
+// Tasks.yielding();
+// console.timeEnd('test')
+
+// console.time('test')
+// Tasks.testYielding();
+// console.timeEnd('test')
+// console.time('test')
+// Tasks.testYielding();
+// console.timeEnd('test')
\ No newline at end of file
--
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