There is a MIT course on YouTube and also, there is a pretty famous former M$ performance engineer who worked on Xbox and bunch of other large projects, he has webpage about how he tracks down bugs and performance issues, don't it have it handy unfortunately.
Another thing to look at - low level optimization. There is a cool book, two volumes written by a German guy - I don't have a link for it either. Maybe someone who has those links can post them here.
EDIT:
https://www.agner.org/optimize/
> there is a pretty famous former M$ performance engineer who worked on Xbox and bunch of other large projects, he has webpage about how he tracks down bugs and performance issues, don't it have it handy unfortunately.
