If you want to see the actual memory latency you can make the next access depend on the results of the previous. uint32_t checksum = 0; uint32_t prevRes = 0;

If you want to see the actual memory latency you can make the next access depend on the results of the previous. uint32_t checksum = 0; uint32_t prevRes = 0; for (int i = 0; i < 1000000; i++) { unsigned offset = (rand32() ^ prevRes )& (TABLE_SIZE - 1); prevRes = table_ints[offset]; checksum += prevRes ; }