Hi, > but I need a quick demo to see the memory profiling or CPU profiling. I hope > a blog or a video which is better for me. Thanks
Well, then I guess you better hurry with reading these books :) There is no shortcut I'm afraid. One of the first things that Brendan explains is how to do benchmarks *prorerly*. This is far from being trivial and often you may be measuring not something you want. E.g. you may think that you are profiling CPU while in fact there is a lock contention and CPU is not even a bottleneck. Another thing worth considering which is often neglected is to make sure your optimization doesn't cause any digradations under different workloads. Last but not least you should be mindful of different configuration parameters of PostgreSQL - shared_buffers, synchronous_commit = off, to name a few, and also understand the architecture of the system quite well. In this context I recommend Database System Concepts, 7th Edition by Avi Silberschatz et al and also CMU Intro to Database Systems [1] and CMU Advanced Database Systems [2] courses. [1]: https://www.youtube.com/playlist?list=PLSE8ODhjZXjZaHA6QcxDfJ0SIWBzQFKEG [2]: https://www.youtube.com/playlist?list=PLSE8ODhjZXjYzlLMbX3cR0sxWnRM7CLFn -- Best regards, Aleksander Alekseev
