My previous (very long) project was in such a state when I got there that it was only in the last year I was there that measuring things in microseconds was something I could get on other people's radars. I wish I had started sooner because I found a lot of microseconds in about a four month period. That was the most intensive period of user-visible latency reduction I saw the entire time it was there and second through fourth place took years of manpower to accomplish. Past me and future me are both still mad about that.
My previous (very long) project was in such a state when I got there that it was only in the last year I was there that measuring things in microseconds was something I could get on other people's radars. I wish I had started sooner because I found a lot of microseconds in about a four month period. That was the most intensive period of user-visible latency reduction I saw the entire time it was there and second through fourth place took years of manpower to accomplish. Past me and future me are both still mad about that.