Ricky's Blog

1. [Best Paper] Opportunities for Optimism in Contended Main-Memory Multicore Transactions Wow, this is cool: We evaluate several concurrency control designs under varying contention and varying workloads, including TPC- C, and find that implementation choices unrelated to concurrency contro...

Source: https://gist.github.com/hellerbarde/2843375 Latency everyone should know 1 2 3 4 5 6 7 8 9 10 11 12 13 14 L1 cache reference ......................... 0.5 ns Branch mispredict ............................ 5 ns L2 cache reference ........................... 7 ns Mutex lock/unlock ..........

Well, wish I had found this mini-book a bit earlier. But still, this is a really great read! It covers basically all aspects of a database system. What I like the most is that the author also gives industrial practice on each of the component. I think a couple of things that the author points ou...

Introduction This was originally written for book report assignment of the CMU’s OS class. I did not manage to finish the entire book during the semester (of course I did not lol.) but cherry-picked some of the chapters. Book Link Question 1: Educational value of material What was the m...

Virtual Memory How to run different programs if they assume they are the only program running? All the .o files share address space, and the linker would merge them together into a continuous chunk Non-Solution Programs take turns to run BAD: this could be slow Lin...