Jörg Breitbart
cc005a274d
- reorder exception throwing to be sync to band position - document WriteBuffer._innerWrite - remove any declarations - remove conditional assigments - use faster return value branching in all parsers - remove dead code in benchmark
69 lines
2.2 KiB
TypeScript
69 lines
2.2 KiB
TypeScript
/**
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* Copyright (c) 2019 The xterm.js authors. All rights reserved.
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* @license MIT
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*/
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import { perfContext, before, ThroughputRuntimeCase } from 'xterm-benchmark';
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import { spawn } from 'node-pty';
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import { Utf8ToUtf32, stringFromCodePoint } from 'common/input/TextDecoder';
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import { Terminal } from 'browser/Terminal';
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perfContext('Terminal: ls -lR /usr/lib', () => {
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let content = '';
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let contentUtf8: Uint8Array;
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before(async () => {
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// grab output from "ls -lR /usr"
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const p = spawn('ls', ['--color=auto', '-lR', '/usr/lib'], {
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name: 'xterm-256color',
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cols: 80,
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rows: 25,
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cwd: process.env.HOME,
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env: process.env,
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encoding: (null as unknown as string) // needs to be fixed in node-pty
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});
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const chunks: Buffer[] = [];
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let length = 0;
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p.on('data', data => {
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chunks.push(data as unknown as Buffer);
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length += data.length;
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});
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await new Promise<void>(resolve => p.on('exit', () => resolve()));
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contentUtf8 = Buffer.concat(chunks, length);
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// translate to content string
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const buffer = new Uint32Array(contentUtf8.length);
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const decoder = new Utf8ToUtf32();
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const codepoints = decoder.decode(contentUtf8, buffer);
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for (let i = 0; i < codepoints; ++i) {
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content += stringFromCodePoint(buffer[i]);
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// peek into content to force flat repr in v8
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if (!(i % 10000000)) {
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content[i];
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}
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}
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});
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perfContext('write/string/async', () => {
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let terminal: Terminal;
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before(() => {
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terminal = new Terminal({cols: 80, rows: 25, scrollback: 1000});
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});
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new ThroughputRuntimeCase('', async () => {
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await new Promise<void>(res => terminal.write(content, res));
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return {payloadSize: contentUtf8.length};
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}, {fork: false}).showAverageThroughput();
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});
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perfContext('write/Utf8/async', () => {
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let terminal: Terminal;
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before(() => {
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terminal = new Terminal({cols: 80, rows: 25, scrollback: 1000});
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});
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new ThroughputRuntimeCase('', async () => {
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await new Promise<void>(res => terminal.write(content, res));
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return {payloadSize: contentUtf8.length};
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}, {fork: false}).showAverageThroughput();
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});
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});
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