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denoland-deno/cli/bench/encode_into.js
Divy Srivastava 38555a6a0f
feat(ops): reland fast zero copy string arguments (#17996)
Reland https://github.com/denoland/deno/pull/16777

The codegen is disabled in async ops and when fallback to slow call is
possible (return type is a Result) to avoid hitting this V8 bug:
https://github.com/denoland/deno/issues/17159
2023-03-03 19:04:10 +05:30

22 lines
672 B
JavaScript

// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
let [total, count] = typeof Deno !== "undefined"
? Deno.args
: [process.argv[2], process.argv[3]];
total = total ? parseInt(total, 0) : 50;
count = count ? parseInt(count, 10) : 10000000;
function bench(fun) {
const start = Date.now();
for (let i = 0; i < count; i++) fun();
const elapsed = Date.now() - start;
const rate = Math.floor(count / (elapsed / 1000));
console.log(`time ${elapsed} ms rate ${rate}`);
if (--total) bench(fun);
}
const encoder = new TextEncoder();
const data = "hello world";
const out = new Uint8Array(100);
bench(() => encoder.encodeInto(data, out));