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// Copyright 2019 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
function AllocMemory(pages, max = pages) {
let m =
new WebAssembly.Memory({initial : pages, maximum : max, shared : true});
let v = new Int32Array(m.buffer);
return {memory : m, view : v};
}
function RunSomeAllocs(total, retained, pages, max = pages) {
print(`-------iterations = ${total}, retained = ${retained} -------`);
var array = new Array(retained);
for (var i = 0; i < total; i++) {
if ((i % 25) == 0)
print(`iteration ${i}`);
let pair = AllocMemory(pages, max);
// For some iterations, retain the memory, view, or both.
switch (i % 3) {
case 0:
pair.memory = null;
break;
case 1:
pair.view = null;
break;
case 2:
break;
}
array[i % retained] = pair;
}
}
RunSomeAllocs(10, 1, 1, 1);
RunSomeAllocs(100, 3, 1, 1);
RunSomeAllocs(1000, 10, 1, 1);
RunSomeAllocs(10000, 20, 1, 1);
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