Diffusion Ant (ast) Code

ant/tests/test_gc_large.js
32b18f1b1662ast

test_gc_large.js
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			console.log('=== GC Test with Large Objects ===\n');

			let alloc1 = Ant.alloc();
			console.log('Initial:');
			console.log(' heapSize:', alloc1.heapSize);
			console.log(' totalBytes:', alloc1.totalBytes);
			console.log('');

			// Allocate large objects
			let largeObjects = [];
			for (let i = 0; i < 5; i++) {
			let arr = new Array(1024 * 128);
			for (let j = 0; j < arr.length; j += 1024) {
			arr[j] = i;
			}
			largeObjects.push(arr);
			}

			let alloc2 = Ant.alloc();
			console.log('After allocating 5MB:');
			console.log(' heapSize:', alloc2.heapSize);
			console.log(' totalBytes:', alloc2.totalBytes);
			console.log('');

			// Free the objects
			largeObjects = null;

			let gc1 = Ant.gc();
			console.log('GC 1: freed:', gc1.freed, 'arenaFreed:', gc1.arenaFreed);
			let gc2 = Ant.gc();
			console.log('GC 2: freed:', gc2.freed, 'arenaFreed:', gc2.arenaFreed);
			let gc3 = Ant.gc();
			console.log('GC 3: freed:', gc3.freed, 'arenaFreed:', gc3.arenaFreed);

			let alloc3 = Ant.alloc();
			console.log('After 3x GC:');
			console.log(' heapSize:', alloc3.heapSize);
			console.log(' totalBytes:', alloc3.totalBytes);
			console.log('');

			// Allocate again - if GC worked, heap shouldn't grow much
			let moreObjects = [];
			for (let i = 0; i < 5; i++) {
			let arr = new Array(1024 * 128);
			for (let j = 0; j < arr.length; j += 1024) {
			arr[j] = i;
			}
			moreObjects.push(arr);
			}

			let alloc4 = Ant.alloc();
			console.log('After allocating another 5MB:');
			console.log(' heapSize:', alloc4.heapSize);
			console.log(' totalBytes:', alloc4.totalBytes);
			console.log(' heap increase from GC point:', alloc4.heapSize - alloc3.heapSize);
			console.log('');

			console.log('If heapSize stayed same, GC reclaimed memory for reuse!');
			console.log('=== Test Complete ===');

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