+1 I'd like to know as well

Some of that, some other bad practices. Lots of low-hanging fruit, then more esoteric changes.

https://justinlloyd.li/blog/how-much-cache-you-got-on-you/

He cached everything and delayed writes too. It's easy to make a system fast when it's not realtime.

Incredibly dismissive of somebody's work, aren't ya? I regret breaking my own self-imposed rule of never answering follow-up questions on HN because there's always some dipshit willing to hand-wave away six months of my life and 40 years of real-world experience with a flippant comment of "oh, but that's easy if you don't have too..."

Fragile ego too.

And you sir, are fucking toxic, just looking at your comment history I can tell that. So you calling me "fragile" carries about as much weight as the next idiot with an opinion.

Toxicity is in the eye of the beholder.

Quick google yields very good examples in huge improvements on a single algorithm level: https://youtu.be/c33AZBnRHks Easy to imagine how even smaller improvements across 10-100 steps of data processing, can become even better.