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Making an AB Test Allocator 20x Faster Using Non-blocking IO
Many moons ago, I inherited a cross-company AB test and had to figure out how to allocate it effectively.
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Matthew Hawthorne
How Would You Design Amazon S3?
One of my favorite system design questions from a few years ago and a fascinating thing I learned while answering it.
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Matthew Hawthorne
One Key Aspect of Optimizing Computational Throughput
When optimizing throughput, think carefully about how many CPUs you have when adding threads or processes.
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Matthew Hawthorne
How We Built a Self-Healing System to Survive a Terrifying Concurrency Bug At Netflix
Our CPUs were dying, the bug was temporarily un-fixable, and we had no viable path forward. Here's how we managed to survive.
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Matthew Hawthorne
When Things Are Slow, Look for Queues
When your system is slower than desired, queues are often heavily involved. Here's an overview of the most common situations.
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Matthew Hawthorne
Metrics Are The Map, Not The Territory
We can never obtain a complete and perfect understanding of what our systems are doing. All we have are incomplete signals to inform our theories.
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Matthew Hawthorne
Comprehension of Concurrency is a Lifelong Journey
Accept that your understanding is imperfect. There is comfort in letting go.
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Matthew Hawthorne
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