Making Haskell Talk to PostgreSQL Without Suffering
How to eliminate the three performance taxes that make database queries slow: encoding overhead, round-trip latency, and N+1 query patterns.
Software engineer, indie hacker, food enthusiast.
I'm Ian, a software engineer and entrepreneur based in The Netherlands. I'm an engineer at Mercury, a financial technology company that develops bank products for startups of all sizes. I write about engineering, cooking, and life.
Engineering
Archive: Automatic Optimal Pipelining of Redis Commands
Archived from Informatikr (originally published January 18, 2012). Describes how the Haskell Redis client Hedis achieves automatic and optimal pipelining by combining lazy I/O with a synchronous-looking API, getting the best of both synchronous and asynchronous approaches.
TIL: HTTP/3 Is Not Always Faster Than HTTP/2
Local benchmarks revealed HTTP/3 can be 50-100x slower than HTTP/2. QUIC's userspace implementation loses to decades of kernel TCP optimizations on high-bandwidth, low-latency networks.
What Functional Programmers Get Wrong About Systems
Type systems verify properties of programs. Production correctness is a property of systems. The gap between these is where the interesting failures live.
Cooking
The Cadence of Salting
When you salt matters as much as how much you salt. Understanding the timing changes everything.
Personal
What You Need to Know About Trump\
A look at the Trump administration\
Actuarial Murder and Other Diffuse Acts of Violence
An exploration of how institutional decisions and systemic policies can cause widespread harm with less accountability than direct violence, examining cases from healthcare to education where bureaucratic choices have life-altering consequences despite being treated as mere business decisions.
The Cruel Part Is
A poem
Vignettes
A collection of memories