// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license. // v8 builtin that's close to the upper bound non-NOPs Deno.bench("date_now", { n: 5e5 }, () => { Date.now(); }); function addJS(a, b) { return a + b; } Deno.bench("add_js", () => addJS(1, 2)); // A very lightweight op, that should be highly optimizable Deno.bench("perf_now", { n: 5e5 }, () => { performance.now(); }); Deno.bench("open_file_sync", () => { using _file = Deno.openSync("./cli/bench/testdata/128k.bin"); }); // A common "language feature", that should be fast // also a decent representation of a non-trivial JSON-op { let i = 0; Deno.bench("url_parse", { n: 5e4 }, () => { new URL(`http://www.google.com/${i}`); i++; }); } Deno.bench("blob_text_large", { n: 100 }, () => { new Blob([input]).text(); }); const input = "long-string".repeat(99999); Deno.bench("b64_rt_long", { n: 100 }, () => { atob(btoa(input)); }); Deno.bench("b64_rt_short", { n: 1e6 }, () => { atob(btoa("123")); }); { const buf = new Uint8Array(100); const file = Deno.openSync("/dev/zero"); Deno.bench("read_zero", { n: 5e5 }, () => { file.readSync(buf); }); } { // Not too large since we want to measure op-overhead not sys IO const dataChunk = new Uint8Array(100); const file = Deno.openSync("/dev/null", { write: true }); Deno.bench("write_null", { n: 5e5 }, () => { file.writeSync(dataChunk); }); } Deno.bench( "read_128k", { n: 5e4 }, () => Deno.readFile("./cli/bench/testdata/128k.bin"), ); Deno.bench("request_new", { n: 5e5 }, () => new Request("https://deno.land"));