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penbergpenberg
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Merge pull request #106 from haaawk/perf-test
Add performance benchmarks and improve iterate
2 parents fb793fe + c45c77e commit 6055db6

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8 files changed

+477
-19
lines changed

8 files changed

+477
-19
lines changed

‎index.js

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@@ -316,11 +316,19 @@ class Statement {
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rows = statementRowsSync.call(this.stmt, bindParameters.flat());
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}
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const iter = {
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nextRows: Array(100),
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nextRowIndex: 100,
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next() {
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const row = rowsNext.call(rows);
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if (this.nextRowIndex === 100) {
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rowsNext.call(rows, this.nextRows);
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this.nextRowIndex = 0;
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}
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const row = this.nextRows[this.nextRowIndex];
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this.nextRows[this.nextRowIndex] = undefined;
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if (!row) {
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return { done: true };
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}
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this.nextRowIndex++;
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return { value: row, done: false };
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},
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[Symbol.iterator]() {

‎perf/package.json

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@@ -0,0 +1,10 @@
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{
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"name": "libsql-perf",
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"type": "module",
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"private": true,
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"dependencies": {
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"better-sqlite3": "^9.5.0",
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"libsql": "..",
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"mitata": "^0.1.11"
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}
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}

‎perf/perf-better-sqlite3.js

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import { run, bench, group, baseline } from 'mitata';
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import Database from 'better-sqlite3';
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const db = new Database(':memory:');
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db.exec("CREATE TABLE users (id INTEGER PRIMARY KEY, name TEXT, email TEXT)");
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db.exec("INSERT INTO users (id, name, email) VALUES (1, 'Alice', 'alice@example.org')");
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const stmt = db.prepare("SELECT * FROM users WHERE id = ?");
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group('Statement', () => {
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bench('get(1)', () => {
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stmt.get(1);
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});
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});
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await run({
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units: false, // print small units cheatsheet
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silent: false, // enable/disable stdout output
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avg: true, // enable/disable avg column (default: true)
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json: false, // enable/disable json output (default: false)
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colors: true, // enable/disable colors (default: true)
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min_max: true, // enable/disable min/max column (default: true)
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percentiles: true, // enable/disable percentiles column (default: true)
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});

‎perf/perf-iterate-better-sqlite3.js

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import { run, bench, group, baseline } from 'mitata';
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import Database from 'better-sqlite3';
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const db = new Database(':memory:');
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db.exec(`CREATE TABLE users (
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field1 TEXT,
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field2 TEXT,
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field3 TEXT,
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field4 TEXT,
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field5 TEXT,
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field6 TEXT,
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field7 TEXT,
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field8 TEXT,
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field9 TEXT,
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field10 TEXT,
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field11 TEXT,
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field12 TEXT,
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field13 TEXT,
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field14 TEXT,
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field15 TEXT,
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field16 TEXT,
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field17 TEXT,
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field18 TEXT,
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field19 TEXT,
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field20 TEXT,
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field21 TEXT,
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field22 TEXT,
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field23 TEXT,
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field24 TEXT,
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field25 TEXT,
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field26 TEXT,
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field27 TEXT,
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field28 TEXT,
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field29 TEXT,
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field30 TEXT,
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field31 TEXT,
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field32 TEXT,
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field33 TEXT,
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field34 TEXT,
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field35 TEXT,
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field36 TEXT,
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field37 TEXT,
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field38 TEXT,
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field39 TEXT,
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field40 TEXT,
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field41 TEXT,
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field42 TEXT,
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field43 TEXT,
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field44 TEXT,
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field45 TEXT,
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field46 TEXT,
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field47 TEXT,
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field48 TEXT,
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field49 TEXT,
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field50 TEXT,
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field51 INTEGER,
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field52 INTEGER,
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field53 INTEGER,
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field54 INTEGER,
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field55 INTEGER,
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field56 INTEGER,
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field57 INTEGER,
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field58 INTEGER,
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field59 INTEGER,
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field60 INTEGER,
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field61 INTEGER,
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field62 INTEGER,
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field63 INTEGER,
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field64 INTEGER,
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field65 INTEGER,
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field66 INTEGER,
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field67 INTEGER,
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field68 INTEGER,
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field69 INTEGER,
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field70 INTEGER
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)`);
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for (let id = 0; id < 500; id++) {
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db.exec(`INSERT INTO users VALUES (
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'some string here',
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'some string here',
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'some string here',
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'some string here',
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'some string here',
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'some string here',
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'some string here',
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'some string here',
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'some string here',
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'some string here',
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'some string here',
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'some string here',
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'some string here',
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'some string here',
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'some string here',
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'some string here',
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'some string here',
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'some string here',
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'some string here',
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'some string here',
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'some string here',
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'some string here',
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'some string here',
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'some string here',
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'some string here',
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'some string here',
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'some string here',
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'some string here',
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'some string here',
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'some string here',
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'some string here',
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'some string here',
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'some string here',
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'some string here',
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'some string here',
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'some string here',
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'some string here',
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'some string here',
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${id},
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${id},
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${id},
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${id},
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${id},
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${id},
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${id},
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${id},
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${id},
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${id},
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${id},
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${id},
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${id},
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${id},
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${id},
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${id},
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${id},
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${id},
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${id},
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${id}
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)`);
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}
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const stmt = db.prepare("SELECT * FROM users WHERE field70 > ?");
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group('Statement', () => {
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bench('iterate', () => {
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for (const row of stmt.iterate(10)) {
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if (row.field1 === 'Never appears') {
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break;
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}
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}
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});
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});
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await run({
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units: false, // print small units cheatsheet
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silent: false, // enable/disable stdout output
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avg: true, // enable/disable avg column (default: true)
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json: false, // enable/disable json output (default: false)
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colors: true, // enable/disable colors (default: true)
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min_max: true, // enable/disable min/max column (default: true)
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percentiles: true, // enable/disable percentiles column (default: true)
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});

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