>but realistically the vast majority of software being developed is simply not performance-critical. It's designed to work at human speed.
I learned this by greatly improving a scheduling system algorithm that could schedule 10-12 related (to each other) medical procedures while accounting for 47 dynamic rules (existing appointments, outage blocks, usage blocks, zero patient waiting, procedure split times, etc) to sub second, improving the current algorithm's 13 seconds. You know what? It didn't matter. That was our speed test scenario (most realistically complex one a customer had).
The customer was fine with 13 seconds because it was so much faster than doing it by hand and these customers were paying hundreds of thousands of dollars for the licenses. Because of this, the improved algorithm was never implemented. It was a neat algorithm though.
Absolute maximum performance has its place, it's just not every place.
I learned this by greatly improving a scheduling system algorithm that could schedule 10-12 related (to each other) medical procedures while accounting for 47 dynamic rules (existing appointments, outage blocks, usage blocks, zero patient waiting, procedure split times, etc) to sub second, improving the current algorithm's 13 seconds. You know what? It didn't matter. That was our speed test scenario (most realistically complex one a customer had).
The customer was fine with 13 seconds because it was so much faster than doing it by hand and these customers were paying hundreds of thousands of dollars for the licenses. Because of this, the improved algorithm was never implemented. It was a neat algorithm though.
Absolute maximum performance has its place, it's just not every place.