mirror of
https://github.com/gorhill/uBlock.git
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67 lines
2.0 KiB
JavaScript
67 lines
2.0 KiB
JavaScript
/*******************************************************************************
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µBlock - a browser extension to block requests.
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Copyright (C) 2014 Raymond Hill
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see {http://www.gnu.org/licenses/}.
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Home: https://github.com/gorhill/uBlock
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*/
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/* exported quickProfiler */
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/******************************************************************************/
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var quickProfiler = (function() {
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'use strict';
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var timer = window.performance || Date;
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var time = 0;
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var count = 0;
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var tstart = 0;
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var lastlog = timer.now();
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var prompt = '';
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var reset = function() {
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time = 0;
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count = 0;
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tstart = 0;
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};
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var avg = function() {
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return count > 0 ? time / count : 0;
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};
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var start = function(s) {
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prompt = s || '';
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tstart = timer.now();
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};
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var stop = function(period) {
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if ( period === undefined ) {
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period = 10000;
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}
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var now = timer.now();
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count += 1;
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time += (now - tstart);
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if ( (now - lastlog) >= period ) {
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console.log('µBlock> %s: %s ms (%d samples)', prompt, avg().toFixed(3), count);
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lastlog = now;
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}
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};
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return {
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reset: reset,
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start: start,
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stop: stop
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};
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})();
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/******************************************************************************/
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