Performance matters, but I’m not sure people are saying that it doesn’t. I’m not a performance “first” type of programmer by any means, but I always keep it in

Performance matters, but I’m not sure people are saying that it doesn’t. I’m not a performance “first” type of programmer by any means, but I always keep it in the back of my mind, what I also tend to keep in the back of my mind is cost. I recently “inherited” a couple of back-end services when a developer left our company. It turned out that the code was terrible and that they haven’t used, any, or our helper tools. Since we use Typescript everywhere ignoring our quite opinionated and a little fascist linter rules is almost impossible, but the developer in question had the authority to turn it off, which they did and in doing so shot themselves completely in the foot. The back-end services were developed in JavaScript more than Typescript and since both our linters and usual teat pipelines were disabled, and since it’s software that has been developed over almost a years worth of changes, it was just horrible. We’re talking loops comparing values, that were probably there once but are now just sorting things as undefined === undefined kinds of terrible. The performance was also atrocious. Basically what the service did was gather info on a couple of thousand projects and link them with tens of thousands documents in Sharepoint, but because it was build wrong, it wasn’t pulling the correct documents and it was taking 5-10 minutes each run time. It’s now running at around 10 seconds for its complete run time. Which is a massive performance improvement, and it’ll be even better once I finish building the cashing. So you might think I’m inclined to agree with the article, but I didn’t rewrite it because of its poor performance, I rewrote it because it didn’t work correctly and the performance gains were simply a happy “coincidence”. This is because the performance didn’t really matter. Yes, it was costing us at most $77 a over our 3 year Azure contract, but the time I spent rebuilding it cost the company almost exactly $1500. Those $1500 were well spent because it wasn’t working, but would they have been well spent in terms of performance? Not really. That being said, it wouldn’t take a lot of those services to become expensive, so it’s not like the author is really wrong either. It’s just that I’m confused with whom he is arguing.