What every programmer should know about memory [pdf]

If interested in details like this, this book [1] is amazing. I'm not sure every programmer needs to dig this deep, but it has been handy to know some of these details for systems engineering/sre work. It's a very thorough book but I think he is very pragmatic in the way he discusses the topics. It's definitely in my top 5 of comp sci books.

[1] http://www.brendangregg.com/blog/2020-07-15/systems-performa...

(2007)

Past:

https://news.ycombinator.com/item?id=25908018

https://news.ycombinator.com/item?id=3919429

https://news.ycombinator.com/item?id=19302299

https://news.ycombinator.com/item?id=1511990

… and more https://hn.algolia.com/?dateRange=all&page=0&prefix=false&qu...

Going to be sure to get the kids to review this 114 page pdf before their scratch lessons.

How much have changed since 2007? CPUs are more and more parallel, GPU have taken a big role in computations with specific memory types, etc... ?

99% of the time 95% of professional programmers never need to think about memory.

I read this 8 months ago, and forgot most of the technical details except that to use memory efficiently, you have to make good use of spatial and temporal locality.