latency

The Packet Was Already Late Before My Application Saw It

Today I followed a market data packet from the network card all the way to the application and realized that latency can appear long before our code even starts running.

A System Can Be Technically Working and Still Be Failing Its Users

What happens when a system can process 10,000 requests per second but suddenly receives 15,000? Today's exploration led me through queueing, backpressure, retries, and a different way of thinking about overload.

Latency doesn’t come from one place. It accumulates across the entire system

Good engineering decisions start with questions, not answers