[levodelellis]

Casey Muratori did many lectures. Check out his yt page playlist. Start with the one titled software quality https://www.youtube.com/@MollyRocket/playlists

I heard good things about his course https://www.computerenhance.com/

Agner Fog manuals are good too https://www.agner.org/optimize/#manuals

A site to look up instruction timings is https://uops.info/table.html

[ltadeut]

Can't praise Casey's course enough!