Caches, and the two hard problems
Some hard-won notes on invalidation and naming things.
Recent posts
Logs you'll actually thank yourself for
A few small habits that make incidents far less painful.
Why your p99 latency lies to you
Tail latencies hide in averages. Here's how I started measuring what users actually feel.
Boring tech is a feature
Why I keep reaching for the dull, well-understood tools.
Backpressure, explained with a kitchen sink
A practical mental model for handling streams that produce data faster than you can consume it.
About
Engineer, occasional gardener of legacy systems. This is where I keep the notes that were too long for a commit message.
Mostly about performance, Linux, observability, distributed systems.
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