GCBenchmark.java

package benchmark;

public class GCBenchmark {
    private static class MemoryAllocator {
        private int[] buffer;

        private MemoryAllocator(int size) {
            this.buffer = new int[size];
        }

        public static MemoryAllocator alloc(int sizeMB) {
            return new MemoryAllocator(sizeMB * 1024 * 1024 / 4);
        }
    }

    public static void main(String[] args) {
        for (int i = 0; i < 100; i++) {
            MemoryAllocator.alloc(5);
        }
    }
}