84 lines
2.2 KiB
JavaScript
84 lines
2.2 KiB
JavaScript
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var pg = require(__dirname + '/../lib')
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var bencher = require('bencher');
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var helper = require(__dirname + '/../test/test-helper')
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var conString = helper.connectionString()
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var round = function(num) {
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return Math.round((num*1000))/1000
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}
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var doBenchmark = function() {
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var bench = bencher({
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name: 'select large sets',
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repeat: 10,
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actions: [{
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name: 'selecting string',
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run: function(next) {
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var query = client.query('SELECT name FROM items');
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query.on('end', function() {
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next();
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});
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}
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}, {
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name: 'selecting integer',
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run: function(next) {
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var query = client.query('SELECT count FROM items');
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query.on('end', function() {
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next();
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})
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}
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}, {
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name: 'selecting date',
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run: function(next) {
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var query = client.query('SELECT created FROM items');
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query.on('end', function() {
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next();
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})
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}
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}, {
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name: 'selecting row',
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run: function(next) {
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var query = client.query('SELECT * FROM items');
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query.on('end', function() {
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next();
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})
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}
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}, {
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name: 'loading all rows into memory',
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run: function(next) {
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var query = client.query('SELECT * FROM items', next);
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}
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}]
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});
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bench(function(result) {
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console.log();
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console.log("%s (%d repeats):", result.name, result.repeat)
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result.actions.forEach(function(action) {
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console.log(" %s: \n average: %d ms\n total: %d ms", action.name, round(action.meanTime), round(action.totalTime));
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})
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client.end();
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})
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}
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var client = new pg.Client(conString);
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client.connect();
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console.log();
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console.log("creating temp table");
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client.query("CREATE TEMP TABLE items(name VARCHAR(10), created TIMESTAMPTZ, count INTEGER)");
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var count = 10000;
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console.log("inserting %d rows", count);
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for(var i = 0; i < count; i++) {
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var query = {
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name: 'insert',
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text: "INSERT INTO items(name, created, count) VALUES($1, $2, $3)",
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values: ["item"+i, new Date(2010, 01, 01, i, 0, 0), i]
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};
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client.query(query);
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}
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client.once('drain', function() {
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console.log('done with insert. executing benchmark.');
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doBenchmark();
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});
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