1'use strict'; 2const common = require('../common.js'); 3 4const bench = common.createBenchmark(main, { 5 bytes: [0, 8, 128, 32 * 1024], 6 partial: ['true', 'false'], 7 n: [6e6] 8}); 9 10function main({ n, bytes, partial }) { 11 const source = Buffer.allocUnsafe(bytes); 12 const target = Buffer.allocUnsafe(bytes); 13 const sourceStart = (partial === 'true' ? Math.floor(bytes / 2) : 0); 14 bench.start(); 15 for (let i = 0; i < n; i++) { 16 source.copy(target, 0, sourceStart); 17 } 18 bench.end(n); 19} 20