PivotEngine Performance (Vue)

The PivotEngine can summarize large data sets, either on the client or on the server. Either way, data summaries are generated asynchronously, so the UI remains responsive while the data is being summarized.

This example demonstrates performance by showing the time it takes to summarize client-side data sets of different sizes.

If your data sets are really large (millions of records), you should consider using server-side OLAP providers like SSAS cubes or ComponentOne Data Services. The PivotEngine can connect to either.

Learn about OLAP | PivotEngine API Reference

This example uses Vue.

<template> <div class="container-fluid"> <div id="buttons" v-on:click="onButtonClick"> <button id="10k" class="btn btn-primary"> 10k items </button> <button id="100k" class="btn btn-primary" :disabled="enable100K"> 100k items </button> <button id="500k" class="btn btn-primary" :disabled="enable500K"> 500k items </button> </div> <p id="result" v-html="result"></p> <div class="output"> <wj-pivot-grid id="pivotGrid" :items-source="ng" /> </div> </div> </template> <script setup> import "@mescius/wijmo.touch"; import * as wjcCore from "@mescius/wijmo"; import * as wjcOlap from "@mescius/wijmo.olap"; import { addData } from "./data"; import { ref, onMounted } from "vue"; const ds10 = ref(addData([], 10e3)); const ds100 = ref(null); const ds500 = ref(null); const ds1M = ref(null); const start = ref(0); const enable100K = ref(true); const enable500K = ref(true); const result = ref(""); const ng = new wjcOlap.PivotEngine({ autoGenerateFields: false, fields: [ { binding: 'date', header: 'Quarter', format: '\"Q\"q yyyy' }, { binding: 'date', header: 'Month', format: 'MMMM' }, { binding: 'agent', header: 'Agent' }, { binding: 'region', header: 'Region' }, { binding: 'platform', header: 'Platform' }, { binding: 'product', header: 'Product' }, { binding: 'sales', header: 'Sales', format: 'c2' }, { binding: 'downloads', header: 'Downloads', format: 'n0' }, { binding: 'revenue', header: 'Revenue', format: 'c2' }, ], itemsSource: addData([], 10e3), showRowTotals: 'Subtotals', rowFields: ['Quarter', 'Region'], columnFields: ['Platform', 'Product'], valueFields: ['Sales', 'Downloads'], updatingView: () => { if (start.value == 0) { start.value = Date.now(); } }, updatedView: (s) => { let fmt = 'Summarized <b>{cnt:n0}</b> items in <b>{tm:n0}</b>ms'; result.value = wjcCore.format(fmt, { cnt: s.itemsSource.length, tm: Date.now() - start.value }); start.value = 0; } }); onMounted(function () { _createDataAsync(100e3, (data) => { ds100.value = data; enable100K.value = false; }); _createDataAsync(500e3, (data) => { ds500.value = data; enable500K.value = false; }); }); function onButtonClick(e) { switch (e.target.id) { case "10k": ng.itemsSource = ds10.value; break; case "100k": ng.itemsSource = ds100.value; break; case "500k": ng.itemsSource = ds500.value; break; } } function _createDataAsync(cnt, callback) { let data = []; _addDataAsync(data, cnt, () => { callback(data); }); } function _addDataAsync(data, cnt, callback) { setTimeout(() => { addData(data, Math.min(cnt - data.length, 1000)); if (data.length == cnt) { callback(data); } else { _addDataAsync(data, cnt, callback); } }); } </script> <style> #buttons { display: flex; margin-bottom: 6px; } #buttons .btn { margin: 6px; white-space: normal; } .output { display: flex; justify-content: center; margin: 6px; } #pivotGrid { width: auto; max-height: 300px; } body { margin-bottom: 36pt; } </style>
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>MESCIUS Wijmo OLAP Pivot Engine Performance</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <!-- SystemJS --> <script src="compiler.js" type="module"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.21.5/system.src.js" integrity="sha512-skZbMyvYdNoZfLmiGn5ii6KmklM82rYX2uWctBhzaXPxJgiv4XBwJnFGr5k8s+6tE1pcR1nuTKghozJHyzMcoA==" crossorigin="anonymous"></script> <script src="systemjs.config.js"></script> <script> System.import('./src/app.js'); </script> </head> <body> <div id="app"> </div> </body> </html>
import { DateTime } from '@mescius/wijmo'; var products = [ { product: 'Wijmo', platform: 'Web' }, { product: 'ActiveReports', platform: 'Desktop' }, { product: 'ActiveReportsJS', platform: 'Web' }, { product: 'ComponentOne', platform: 'Desktop' }, { product: 'Spread', platform: 'Desktop' }, { product: 'SpreadJS', platform: 'Web' }, { product: 'GCDocs', platform: 'Desktop' } ]; var agents = [ { agent: 'Ashlyn Dunlop', region: 'East' }, { agent: 'Keith Vang', region: 'East' }, { agent: 'Bobbi Rodrigues', region: 'West' }, { agent: 'Charli Medina', region: 'West' }, { agent: 'Kaitlin Salt', region: 'West' }, ]; function randomInt(min, max) { return Math.floor(Math.random() * (max - min + 1) + min); } export function addData(data, cnt) { var year = new Date().getFullYear(); for(var i = 0; i < cnt; i++) { let productIndex = randomInt(0, 6); let agentIndex = randomInt(0, 4); data.push({ orderId: randomInt(1, 10000), platform: products[productIndex].platform, product: products[productIndex].product, agent: agents[agentIndex].agent, region: agents[agentIndex].region, date: new Date(year - randomInt(0, 2), randomInt(0, 11), randomInt(0, 27)), sales: randomInt(1500, 3500), downloads: randomInt(10, 200), revenue: randomInt(500, 1000) }); } return data; }
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