jdk8-mips64-public/nashorn: test/lib/benchmark.js@2f1b9f4daec1

8080087: Nashorn $ENV.PWD is originally undefined
Summary: On Windows, the PWD environment variable does not exist and cannot be imported in scripting mode, so it is set explicitly.
Reviewed-by: lagergren, sundar

     1 /*

     2  * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  */

    24 /**

    25  * A simple benchmark module that can be loaded

    26  * in order to time how many times a method executes

    27  * in a fixed number of seconds

    28  */

    30 var benchmark = function(method, timeInMillis, args) {

    31     var hz,

    32     period,

    33     startTime = new Date,

    34     runs = 0;

    35     do {

    36     method.apply(args);

    37     runs++;

    38     totalTime = new Date - startTime;

    39     } while (totalTime < timeInMillis);

    41     // convert ms to seconds

    42     totalTime /= 1000;

    44     // period → how long per operation

    45     period = totalTime / runs;

    47     // hz → the number of operations per second

    48     hz = 1 / period;

    50     return hz;

    51 };

Mercurial > jdk8-mips64-public > nashorn / file revision

test/lib/benchmark.js@2f1b9f4daec1

test/lib/benchmark.js