cronometro - npm Package Compare versions

Comparing version 0.3.0 to 0.4.0

CHANGELOG.md

@@ -0,1 +1,8 @@
+### 2020-04-22 / 0.4.0
+
+- chore: Allow greater test timeouts.
+- feat: Removed useless debug infrastructure.
+- feat: Reimplemented warmup mode.
+- feat: Use worker_threads for execution. Tested everything.
+
 ### 2020-03-05 / 0.3.0
@@ -2,0 +9,0 @@

lib/index.js

 'use strict';
-var __importDefault = (this && this.__importDefault) || function (mod) {
-    return (mod && mod.__esModule) ? mod : { "default": mod };
-};
+function __export(m) {
+    for (var p in m) if (!exports.hasOwnProperty(p)) exports[p] = m[p];
+}
 Object.defineProperty(exports, "__esModule", { value: true });
-// @ts-ignore
-const native_hdr_histogram_1 = __importDefault(require("native-hdr-histogram"));
+const path_1 = require("path");
+const worker_threads_1 = require("worker_threads");
+const models_1 = require("./models");
 const print_1 = require("./print");
-const debug = (process.env.NODE_DEBUG || '').includes('cronometro');
-function schedule(operation) {
-    process.nextTick(operation);
-}
-function runIteration(context) {
-    function trackResults(error) {
-        // Handle error
-        if (error) {
-            context.results[context.current.name] = { success: false, error, mean: 0 };
-            schedule(() => processQueue(context));
-            return;
-        }
-        const { histogram } = context.current;
-        if (histogram.record(Number(process.hrtime.bigint() - start))) {
-            context.current.records++;
-        }
-        if (context.errorThreshold > 0) {
-            const completedPercentage = Math.floor((1 - context.current.remaining / context.iterations) * 10000);
-            // Check if abort the test earlier. It is checked every 5% after 10% of the iterations
-            if (completedPercentage > 1000 && completedPercentage % 500 === 0) {
-                const standardErrorPercentage = histogram.stddev() / Math.sqrt(context.current.records) / histogram.mean();
-                if (standardErrorPercentage < context.errorThreshold) {
-                    context.current.remaining = 0;
-                }
-            }
-        }
-        if (context.current.remaining === 0) {
-            context.results[context.current.name] = {
-                success: true,
-                size: context.current.records,
-                min: histogram.min(),
-                max: histogram.min(),
-                mean: histogram.mean(),
-                stddev: histogram.stddev(),
-                percentiles: histogram
-                    .percentiles()
-                    .reduce((accu, { percentile, value }) => {
-                    accu[percentile] = value;
-                    return accu;
-                }, {}),
-                standardError: histogram.stddev() / Math.sqrt(context.current.records)
-            };
-            schedule(() => processQueue(context));
-            return;
-        }
-        context.current.remaining--;
-        schedule(() => runIteration(context));
+__export(require("./models"));
+function scheduleNextTest(context) {
+    // We still have work to do
+    if (context.current < context.tests.length) {
+        return process.nextTick(() => run(context));
     }
-    if (debug) {
-        console.debug(`cronometro: Executing test ${context.current.name}, ${context.current.remaining} iterations to go`);
+    if (context.print) {
+        const { colors, compare, compareMode } = {
+            colors: true,
+            compare: false,
+            compareMode: 'base',
+            ...(context.print === true ? {} : context.print)
+        };
+        print_1.printResults(context.results, colors, compare, compareMode);
     }
-    const start = process.hrtime.bigint();
-    try {
-        // Execute the function and get the response time - Handle also promises
-        const callResult = context.current.test(trackResults);
-        if (callResult && typeof callResult.then === 'function') {
-            callResult.then(() => trackResults(null), trackResults);
+    context.callback(null, context.results);
+}
+function run(context) {
+    const name = context.tests[context.current][0];
+    const worker = new worker_threads_1.Worker(path_1.join(__dirname, '../lib/runner.js'), {
+        workerData: {
+            path: process.argv[1],
+            index: context.current,
+            iterations: context.iterations,
+            warmup: context.warmup,
+            errorThreshold: context.errorThreshold
         }
-        else if (context.current.test.length === 0) {
-            trackResults(null);
-        }
-    }
-    catch (error) {
-        context.results[context.current.name] = { success: false, error };
-        schedule(() => processQueue(context));
-    }
+    });
+    worker.on('error', (error) => {
+        context.results[name] = {
+            success: false,
+            error,
+            size: 0,
+            min: 0,
+            max: 0,
+            mean: 0,
+            stddev: 0,
+            percentiles: {},
+            standardError: 0
+        };
+        context.current++;
+        scheduleNextTest(context);
+    });
+    worker.on('message', (result) => {
+        context.results[name] = result;
+        context.current++;
+        scheduleNextTest(context);
+    });
 }
-function processQueue(context) {
-    // Get the next test to run
-    const next = context.queue.shift();
-    if (!next) {
-        return context.callback(null, context.results);
+function cronometro(tests, options, cb) {
+    /* istanbul ignore next */
+    if (!worker_threads_1.isMainThread) {
+        worker_threads_1.workerData.tests = Object.entries(tests);
+        return;
     }
-    const testContext = context;
-    testContext.current = {
-        name: next[0],
-        test: next[1],
-        remaining: context.iterations - 1,
-        records: 0,
-        histogram: new native_hdr_histogram_1.default(1, 1e9, 5)
-    };
-    schedule(() => runIteration(testContext));
-}
-function cronometro(tests, options, callback) {
     let promise;
@@ -97,5 +69,6 @@ let promiseResolve;
     if (typeof options === 'function') {
-        callback = options;
+        cb = options;
         options = {};
     }
+    let callback = cb;
     if (!callback) {
@@ -114,9 +87,3 @@ promise = new Promise((resolve, reject) => {
     // Parse and validate options
-    const { iterations, errorThreshold, print, warmup } = {
-        iterations: 1e4,
-        warmup: true,
-        errorThreshold: 1,
-        print: true,
-        ...options
-    };
+    const { iterations, errorThreshold, print, warmup } = { ...models_1.defaultOptions, ...options };
     // tslint:disable-next-line strict-type-predicates
@@ -132,39 +99,14 @@ if (typeof iterations !== 'number' || iterations < 1) {
     }
-    // Process all tests
+    // Prepare the test
     const context = {
-        queue: Object.entries(tests),
-        results: {},
+        warmup,
         iterations,
         errorThreshold: errorThreshold / 100,
-        callback(error, results) {
-            if (error) {
-                callback(error);
-                return;
-            }
-            if (print) {
-                const { colors, compare, compareMode } = {
-                    colors: true,
-                    compare: false,
-                    compareMode: 'base',
-                    ...(print === true ? {} : print)
-                };
-                print_1.printResults(results, colors, compare, compareMode);
-            }
-            callback(null, results);
-        }
-    };
-    const boot = {
-        queue: warmup ? context.queue.slice(0) : [],
+        print,
+        tests: Object.entries(tests),
         results: {},
-        iterations,
-        errorThreshold: errorThreshold / 100,
-        callback(error) {
-            if (error) {
-                callback(error);
-                return;
-            }
-            schedule(() => processQueue(context));
-        }
+        current: 0,
+        callback
     };
-    schedule(() => processQueue(boot));
+    process.nextTick(() => run(context));
     return promise;
@@ -171,0 +113,0 @@ }

lib/models.js

 "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });
+exports.defaultOptions = {
+    iterations: 1e4,
+    warmup: true,
+    errorThreshold: 1,
+    print: true
+};
+exports.percentiles = [0.001, 0.01, 0.1, 1, 2.5, 10, 25, 50, 75, 90, 97.5, 99, 99.9, 99.99, 99.999];

lib/print.js

@@ -6,2 +6,7 @@ "use strict";
 const styles = ['red', 'green', 'yellow', 'blue', 'magenta', 'cyan', 'white', 'gray'];
+let currentLogger = console.log;
+function setLogger(logger) {
+    currentLogger = logger;
+}
+exports.setLogger = setLogger;
 function printResults(results, colors, compare, mode) {
@@ -14,6 +19,14 @@ const styler = colors ? acquerello_1.colorize : acquerello_1.clean;
     const entries = Object.entries(results)
-        .sort((a, b) => b[1].mean - a[1].mean)
+        .sort((a, b) => (!a[1].success ? -1 : b[1].mean - a[1].mean))
         .map(([name, result]) => {
         if (!result.success) {
-            return { name, error: result.error, throughput: '', standardError: '', relative: '', compared: '' };
+            return {
+                name,
+                size: 0,
+                error: result.error,
+                throughput: '',
+                standardError: '',
+                relative: '',
+                compared: ''
+            };
         }
@@ -36,3 +49,3 @@ const { size, mean, standardError } = result;
             name,
-            size: size,
+            size,
             error: null,
@@ -57,2 +70,3 @@ throughput: (1e9 / mean).toFixed(2),
             }
+            return row;
         }
@@ -77,5 +91,5 @@ const { name, size, throughput, standardError, relative } = entry;
     });
-    const compareHeader = `Difference with ${mode === 'base' ? compared : 'previous'}`;
+    const compareHeader = `Difference with ${mode === 'base' ? 'slowest' : 'previous'}`;
     rows.unshift([
-        styler('{{bold white}}Test{{-}}'),
+        styler('{{bold white}}Slower tests{{-}}'),
         styler('{{bold white}}Samples{{-}}'),
@@ -95,3 +109,3 @@ styler('{{bold white}}Result{{-}}'),
     }
-    console.log(table_1.table(rows, {
+    currentLogger(table_1.table(rows, {
         columns: {
@@ -98,0 +112,0 @@ 0: {

package.json

 {
   "name": "cronometro",
-  "version": "0.3.0",
+  "version": "0.4.0",
   "description": "Simple benchmarking suite powered by HDR histograms.",
@@ -28,5 +28,5 @@ "homepage": "https://sw.cowtech.it/cronometro",
   "scripts": {
-    "lint": "tslint --project tsconfig.test.json -t stylish src/*.ts test/*.ts",
-    "ci": "yarn lint && tap --no-color --reporter=spec --coverage-report=json --coverage-report=text --branches 90 --functions 90 --lines 90 --statements 90 test/*.spec.ts",
-    "test": "tap --reporter=spec --coverage-report=html --coverage-report=text --no-browser test/*.spec.ts",
+    "lint": "eslint src/*.ts test/*.ts",
+    "ci": "yarn lint && tap --timeout=60 --no-color --reporter=spec --coverage-report=json --coverage-report=text --branches 90 --functions 90 --lines 90 --statements 90 test/*.spec.ts",
+    "test": "tap --timeout=60 --reporter=spec --coverage-report=html --coverage-report=text --no-browser test/*.spec.ts",
     "prebuild": "rm -rf lib/* types/* && yarn lint",
@@ -39,17 +39,23 @@ "build": "tsc -p .",
     "acquerello": "^0.1.2",
-    "native-hdr-histogram": "^0.7.0",
+    "hdr-histogram-js": "^1.2.0",
     "table": "^5.4.6"
   },
   "devDependencies": {
-    "@cowtech/tslint-config": "^5.13.0",
-    "@types/node": "^13.5.1",
-    "@types/table": "^4.0.7",
-    "prettier": "^1.19.1",
-    "tap": "^14.10.6",
-    "tslint": "^5.20.0",
+    "@cowtech/eslint-config": "^6.8.5",
+    "@types/node": "^13.13.1",
+    "@types/sinon": "^9.0.0",
+    "@types/table": "^5.0.0",
+    "prettier": "^2.0.4",
+    "proxyquire": "^2.1.3",
+    "sinon": "^9.0.2",
+    "tap": "^14.10.7",
     "typescript": "^3.7.5"
   },
+  "peerDependencies": {
+    "ts-node": "^8.9.0",
+    "typescript": "^3.8.3"
+  },
   "engines": {
-    "node": ">= 12.0.0"
+    "node": ">=12.15.0"
   }
 }

README.md

@@ -12,2 +12,32 @@ # cronometro
 
+## Requirements
+
+Cronometro uses [worker_threads](https://nodejs.org/dist/latest-v12.x/docs/api/worker_threads.html) to run tests in a isolated V8 enviroments to offer the most accurate benchmark. This imposes the restrictions described in the subsections below.
+
+### Supported Node versions
+
+Only Node 12.x and above are supported.
+
+### Script invocation
+
+The main script which invokes cronometro must be executable without command line arguments, as it is how it will be called within a Worker Thread.
+
+If you need to configure the script at runtime, use environment variables and optionally configuration files.
+
+### TypeScript
+
+cronometro uses [ts-node](https://www.npmjs.com/package/ts-node) to compile TypeScript files on the fly.
+
+ts-node and TypeScript are not installed automatically by cronometro (as they are listed in `peerDependencies`) so you need to do it manually.
+
+To pass the `tsconfig.json` project file to use, use the `TS_NODE_PROJECT` environment variable.
+
+### API use
+
+If you use cronometro as an API and manipulate its return value, consider that the exact same code its executed in both the main thread and in worker threads.
+
+Inside worker threads, the cronometro function invocation will return no value and no callbacks are invoked.
+
+You can use `isMainThread` from Worker Threads API to check in which environment the script is running.
+
 ## Usage
@@ -59,6 +89,6 @@
 const results = cronometro({
-  test1: function() {
+  test1: function () {
     // Do something
   },
-  test2: function() {
+  test2: function () {
     // Do something else
@@ -88,9 +118,14 @@ }
 
+const pattern = /[123]/g
+const replacements: { [key: string]: string } = { 1: 'a', 2: 'b', 3: 'c' }
+
+const subject = '123123123123123123123123123123123123123123123123'
+
 const results = cronometro(
   {
-    test1: function() {
-      // Do something
+    single() {
+      subject.replace(pattern, (m) => replacements[m])
     },
-    test2: function() {
-      // Do something else
+    multiple() {
+      subject.replace(/1/g, 'a').replace(/2/g, 'b').replace(/3/g, 'c')
     }
@@ -113,61 +148,53 @@ },
 {
-  "test1": {
+  "single": {
     "success": true,
-    "size": 100001,
-    "min": 4732,
-    "max": 4732,
-    "mean": 7010.153258467415,
-    "stddev": 66157.57904031666,
+    "size": 5,
+    "min": 29785,
+    "max": 41506,
+    "mean": 32894.2,
+    "stddev": 4407.019555209621,
     "percentiles": {
-      "0": 4732,
-      "50": 5216,
-      "75": 6077,
-      "100": 20469632,
-      "87.5": 6988,
-      "93.75": 13986,
-      "96.875": 20314,
-      "98.4375": 25338,
-      "99.21875": 27127,
-      "99.609375": 32019,
-      "99.8046875": 39667,
-      "99.90234375": 57527,
-      "99.951171875": 81029,
-      "99.9755859375": 237553,
-      "99.98779296875": 700244,
-      "99.993896484375": 996392,
-      "99.9969482421875": 1133848,
-      "99.99847412109375": 2129600,
-      "99.99923706054688": 20469632
+      "1": 29785,
+      "10": 29785,
+      "25": 29861,
+      "50": 30942,
+      "75": 32377,
+      "90": 41506,
+      "99": 41506,
+      "0.001": 29785,
+      "0.01": 29785,
+      "0.1": 29785,
+      "2.5": 29785,
+      "97.5": 41506,
+      "99.9": 41506,
+      "99.99": 41506,
+      "99.999": 41506
     },
-    "standardError": 209.20758821469119
+    "standardError": 1970.87906072392
   },
-  "test2": {
+  "multiple": {
     "success": true,
-    "size": 100001,
-    "min": 1376,
-    "max": 1376,
-    "mean": 3810.3853361466386,
-    "stddev": 50388.5658604418,
+    "size": 5,
+    "min": 21881,
+    "max": 33368,
+    "mean": 27646.4,
+    "stddev": 4826.189494829228,
     "percentiles": {
-      "0": 1376,
-      "50": 1478,
-      "75": 1587,
-      "100": 3069392,
-      "87.5": 1732,
-      "93.75": 1811,
-      "96.875": 2037,
-      "98.4375": 15448,
-      "99.21875": 20835,
-      "99.609375": 23230,
-      "99.8046875": 42270,
-      "99.90234375": 1129616,
-      "99.951171875": 1333168,
-      "99.9755859375": 1429376,
-      "99.98779296875": 1483120,
-      "99.993896484375": 1743192,
-      "99.9969482421875": 2598512,
-      "99.99847412109375": 2910800,
-      "99.99923706054688": 3069392
+      "1": 21881,
+      "10": 21881,
+      "25": 23142,
+      "50": 26770,
+      "75": 33071,
+      "90": 33368,
+      "99": 33368,
+      "0.001": 21881,
+      "0.01": 21881,
+      "0.1": 21881,
+      "2.5": 21881,
+      "97.5": 33368,
+      "99.9": 33368,
+      "99.99": 33368,
+      "99.999": 33368
     },
-    "standardError": 159.34183944119272
+    "standardError": 2158.337556546705
   }
@@ -174,0 +201,0 @@ }

types/index.d.ts

 import { Callback, Options, Results, Tests } from './models';
 export * from './models';
-export declare function cronometro(tests: Tests, options: Options | Callback, callback?: Callback): Promise<Results> | undefined;
+export declare function cronometro(tests: Tests): Promise<Results> | void;
+export declare function cronometro(tests: Tests, options: Partial<Options>): Promise<Results>;
+export declare function cronometro(tests: Tests, options: Partial<Options>, cb: Callback): undefined;
+export declare function cronometro(tests: Tests, options: Callback): void;

types/models.d.ts

@@ -0,1 +1,2 @@
+import { AbstractHistogram } from 'hdr-histogram-js';
 export interface PrintOptions {
@@ -8,2 +9,3 @@ colors?: boolean;
     iterations: number;
+    errorThreshold: number;
     print: boolean | PrintOptions;
@@ -16,13 +18,5 @@ warmup: boolean;
 export declare type Test = StaticTest | AsyncTest | PromiseTest;
-export declare type Callback = (err?: Error | null, result?: Results) => any;
-export interface Histogram {
-    record(value: number): boolean;
-    min(): number;
-    max(): number;
-    mean(): number;
-    stddev(): number;
-    percentiles(): Array<{
-        percentile: number;
-        value: number;
-    }>;
+export declare type Callback = ((err: Error | null) => any) | ((err: null, results: Results) => any);
+export interface Percentiles {
+    [key: string]: number;
 }
@@ -32,11 +26,9 @@ export interface Result {
     error?: Error;
-    size?: number;
-    min?: number;
-    max?: number;
-    mean?: number;
-    stddev?: number;
-    standardError?: number;
-    percentiles?: {
-        [key: string]: number;
-    };
+    size: number;
+    min: number;
+    max: number;
+    mean: number;
+    stddev: number;
+    standardError: number;
+    percentiles: Percentiles;
 }
@@ -50,16 +42,37 @@ export interface Tests {
 export interface Context {
+    warmup: boolean;
+    iterations: number;
+    errorThreshold: number;
+    print: boolean | PrintOptions;
+    tests: Array<[string, Test]>;
+    results: Results;
+    current: number;
     callback: Callback;
-    queue: Array<[string, Test]>;
-    results: Results;
+}
+export interface WorkerContext {
+    path: string;
+    tests: Array<[string, Test]>;
+    index: number;
     iterations: number;
+    warmup: boolean;
     errorThreshold: number;
 }
-export interface TestContext extends Context {
-    current: {
-        name: string;
-        test: Test;
-        remaining: number;
-        records: number;
-        histogram: Histogram;
-    };
+export interface TestContext {
+    name: string;
+    test: Test;
+    errorThreshold: number;
+    total: number;
+    executed: number;
+    histogram: AbstractHistogram;
+    start: bigint;
+    handler(error?: Error | null): void;
+    notifier(value: any): void;
+    callback(result: Result): void;
 }
+export declare const defaultOptions: {
+    iterations: number;
+    warmup: boolean;
+    errorThreshold: number;
+    print: boolean;
+};
+export declare const percentiles: number[];

types/print.d.ts

 import { Results } from './models';
+export declare function setLogger(logger: (message: string, ...params: Array<any>) => void): void;
 export declare function printResults(results: Results, colors: boolean, compare: boolean, mode: 'base' | 'previous'): void;

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Improved metrics

Total package byte prevSize

26890

increased by26.13%

Number of package files

14

increased by40%

Lines of code

472

increased by35.24%

Number of lines in readme file

214

increased by14.44%

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Dependency count

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increased by66.67%

Dev dependency count

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increased by28.57%

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increased by50%

Number of medium supply chain risk alerts

1

increased byInfinity%

Dependency changes

• + Addedhdr-histogram-js@^1.2.0

• + Addedarg@4.1.3(transitive)

• + Addedbase64-js@1.5.1(transitive)

• + Addedbuffer-from@1.1.2(transitive)

• + Addeddiff@4.0.2(transitive)

• + Addedhdr-histogram-js@1.2.0(transitive)

• + Addedmake-error@1.3.6(transitive)

• + Addedpako@1.0.11(transitive)

• + Addedsource-map@0.6.1(transitive)

• + Addedsource-map-support@0.5.21(transitive)

• + Addedts-node@8.10.2(transitive)

• + Addedtypescript@3.9.10(transitive)

• + Addedyn@3.1.1(transitive)

• - Removednative-hdr-histogram@^0.7.0

• - Removedabbrev@1.1.1(transitive)

• - Removedansi-regex@2.1.1(transitive)

• - Removedaproba@1.2.0(transitive)

• - Removedare-we-there-yet@1.1.7(transitive)

• - Removedbalanced-match@1.0.2(transitive)

• - Removedbrace-expansion@1.1.11(transitive)

• - Removedchownr@1.1.4(transitive)

• - Removedcode-point-at@1.1.0(transitive)

• - Removedconcat-map@0.0.1(transitive)

• - Removedconsole-control-strings@1.1.0(transitive)

• - Removedcore-util-is@1.0.3(transitive)

• - Removeddebug@3.2.7(transitive)

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