What every programmer should know about memory

This was a series of posts appeared on LWN, a while ago. A precious document from Ulrich Drepper which have been brought back recently to great attention to me from a post on HN. Thanks Ulrich, LWN and HN:

• Part 1 (Introduction)
• Part 2 (CPU caches)
• Part 3 (Virtual memory)
• Part 4 (NUMA systems)
• Part 5 (What programmers can do - cache optimization)
• Part 6 (What programmers can do - multi-threaded optimizations)
• Part 7 (Memory performance tools …