| // |reftest| random -- bogus perf test (bug 467263) |
| /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| /* This Source Code Form is subject to the terms of the Mozilla Public |
| * License, v. 2.0. If a copy of the MPL was not distributed with this |
| * file, You can obtain one at http://mozilla.org/MPL/2.0/. |
| |
| /* |
| * Date: 27 September 2001 |
| * |
| * SUMMARY: Performance: truncating even very large arrays should be fast! |
| * See http://bugzilla.mozilla.org/show_bug.cgi?id=101964 |
| * |
| * Adjust this testcase if necessary. The FAST constant defines |
| * an upper bound in milliseconds for any truncation to take. |
| */ |
| //----------------------------------------------------------------------------- |
| var UBound = 0; |
| var BUGNUMBER = 101964; |
| var summary = 'Performance: truncating even very large arrays should be fast!'; |
| var BIG = 10000000; |
| var LITTLE = 10; |
| var FAST = 50; // array truncation should be 50 ms or less to pass the test |
| var MSG_FAST = 'Truncation took less than ' + FAST + ' ms'; |
| var MSG_SLOW = 'Truncation took '; |
| var MSG_MS = ' ms'; |
| var status = ''; |
| var statusitems = []; |
| var actual = ''; |
| var actualvalues = []; |
| var expect= ''; |
| var expectedvalues = []; |
| |
| |
| |
| status = inSection(1); |
| var arr = Array(BIG); |
| var start = new Date(); |
| arr.length = LITTLE; |
| actual = elapsedTime(start); |
| expect = FAST; |
| addThis(); |
| |
| |
| |
| //----------------------------------------------------------------------------- |
| test(); |
| //----------------------------------------------------------------------------- |
| |
| |
| |
| function elapsedTime(startTime) |
| { |
| return new Date() - startTime; |
| } |
| |
| |
| function addThis() |
| { |
| statusitems[UBound] = status; |
| actualvalues[UBound] = isThisFast(actual); |
| expectedvalues[UBound] = isThisFast(expect); |
| UBound++; |
| } |
| |
| |
| function isThisFast(ms) |
| { |
| if (ms <= FAST) |
| return MSG_FAST; |
| return MSG_SLOW + ms + MSG_MS; |
| } |
| |
| |
| function test() |
| { |
| enterFunc ('test'); |
| printBugNumber(BUGNUMBER); |
| printStatus (summary); |
| |
| for (var i=0; i<UBound; i++) |
| { |
| reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]); |
| } |
| |
| exitFunc ('test'); |
| } |