Mar 04, 2025 Why fastDOOM is fast During the winter of 2024, I restored an IBM PS/1 486-DX2 66Mhz, "Mini-Tower", model 2168. It was the computer I always wanted as a teenager but could never afford. Words cannot do justice to the joy I felt while working on this machine. As soon as I got something able to boot, I benchmarked the one software I wanted to run. C:\DOOM>doom.exe -timedemo demo1 timed 1710 gametics in 2783 realtics Doom doesn't give the fps right away. You have to do a bit of math to...