1. Cache Review Review the performance with different accessing method. Here, My L2 cache is 256K with cache line size of 64 bytes. It means the system will load 64 bytes each time to the cache line. There are two sub-routines called function1 and functions 2, row major and column major with the same number of reads, but with different performance.

2. My PC at home – L1 cache is 16Kbytes and L2 is 256K bytes and Cache line is 64Bytes, you can find the software from CPUID under Intel web site.

3. L2 Cache 256K, Data 768K, The total number of reads is func1(1024*12*16) fucn2 (16*1024*12) (func1: 1.2 ms, func2: 12 ms)

4. L2 Cache 256K, Data 256K func1  func2

5. L2 Cache 256K, Data 256K, func2  func1

6. L2 Cache 256K, Data 128K