1
0
mirror of https://github.com/gorhill/uBlock.git synced 2024-11-05 18:32:30 +01:00
uBlock/src/js/profiler.js
Deathamns 0886f7e886 Add .jshintrc, and use the "use strict" directive
.jshintrc's otion-set is a personal choice, merely a suggestion.
Beside that, it includes some common globals for specific browsers, so
there's no need to set the globals in every .js file.

In order to force strict coding, "use strict" directive was added into
every .js file.
2014-11-09 17:39:17 +01:00

66 lines
2.0 KiB
JavaScript

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