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test_gc.js
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test_gc.js
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function fmt(bytes) {
if (bytes < 1024) return bytes + ' B';
if (bytes < 1024 * 1024) return (bytes / 1024).toFixed(2) + ' KB';
return (bytes / 1024 / 1024).toFixed(2) + ' MB';
}
console.log('=== Testing Ant.stats() ===');
let stats1 = Ant.stats();
console.log('Initial:');
console.log(' arenaUsed:', fmt(stats1.arenaUsed));
console.log(' arenaSize:', fmt(stats1.arenaSize));
console.log(' rss:', fmt(stats1.rss));
console.log('\n=== Creating objects to allocate memory ===');
let arr = [];
for (let i = 0; i < 100; i = i + 1) {
arr.push({ value: i, name: 'item' + i });
}
console.log('Created array with 100 objects');
let stats2 = Ant.stats();
console.log('After allocation:');
console.log(' arenaUsed:', fmt(stats2.arenaUsed));
console.log(' arenaSize:', fmt(stats2.arenaSize));
console.log(' rss:', fmt(stats2.rss));
console.log(' arenaUsed increase:', fmt(stats2.arenaUsed - stats1.arenaUsed));
console.log('\n=== Testing GC ===');
arr = null;
console.log('\n=== Stats after GC ===');
let stats3 = Ant.stats();
console.log('Memory stats:');
console.log(' arenaUsed:', fmt(stats3.arenaUsed));
console.log(' arenaSize:', fmt(stats3.arenaSize));
console.log(' rss:', fmt(stats3.rss));
console.log('\n=== Testing multiple GC cycles ===');
for (let cycle = 0; cycle < 3; cycle = cycle + 1) {
console.log('Cycle', cycle + 1);
let temp = [];
for (let i = 0; i < 50; i = i + 1) {
temp.push({ data: 'test data ' + i });
}
let before = Ant.stats();
console.log(' Before GC - arenaUsed:', fmt(before.arenaUsed));
temp = null;
console.log(' After GC - arenaUsed:', fmt(Ant.stats().arenaUsed));
}
console.log('\n=== Final stats ===');
let stats4 = Ant.stats();
console.log('Memory stats:');
console.log(' arenaUsed:', fmt(stats4.arenaUsed));
console.log(' arenaSize:', fmt(stats4.arenaSize));
console.log(' rss:', fmt(stats4.rss));
console.log('\n=== Test complete ===');

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