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Issue 133663002: Temporarily disable performance.now() in the d8 shell. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 6 years, 11 months ago
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1 // Copyright 2013 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are
4 // met:
5 //
6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided
11 // with the distribution.
12 // * Neither the name of Google Inc. nor the names of its
13 // contributors may be used to endorse or promote products derived
14 // from this software without specific prior written permission.
15 //
16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
28 // Flags: --allow-natives-syntax
29
30 // Test the performance.now() function of d8. This test only makes sense with
31 // d8.
32
33 // Don't run this test in gc stress mode. Time differences may be long
34 // due to garbage collections.
35 %SetFlags("--gc-interval=-1");
36 %SetFlags("--nostress-compaction");
37
38 if (this.performance && performance.now) {
39 (function run() {
40 var start_test = performance.now();
41 // Let the retry run for maximum 100ms to reduce flakiness.
42 for (var start = performance.now();
43 start - start_test < 100;
44 start = performance.now()) {
45 var end = performance.now();
46 assertTrue(start >= start_test);
47 assertTrue(end >= start);
48 while (end - start == 0) {
49 var next = performance.now();
50 assertTrue(next >= end);
51 end = next;
52 }
53 if (end - start <= 1) {
54 // Found (sub-)millisecond granularity.
55 return;
56 } else {
57 print("Timer difference too big: " + (end - start) + "ms");
58 }
59 }
60 assertTrue(false);
61 })()
62 }
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