Code Optimization Paradigms

[alexander supertrade]

What are some paradigms/rules/techniques for optimizing code for resource efficiency? I know next to nothing about this beyond the blatantly obvious but have come to a point where I think its time I learn.. can anyone recommend any good literature on the subject or give some more-than-basic advice?

[William Roeder]

https://www.mql5.com/en/forum/128784

https://www.mql5.com/en/forum/132682

[alexander supertrade]

Thanks!