1
The Billion Row Challenge (1BRC) – Step-by-Step from 71s to 1.7s
A step-by-step walkthrough of the Billion Row Challenge, taking a Parallel Java Streams aggregation from 71 seconds down to 1.7 with SIMD and tuning.
QuestDB Blog
QuestDB is the open-source time-series database for demanding workloads: ultra-low latency, high throughput, tiered storage, and fast SQL on open formats.
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2
1BRC merykitty's magic SWAR: 8 lines of code explained in 3k words
A deep dive into merykitty's 8-line SWAR temperature parser from the One Billion Row Challenge, using bitwise tricks and ALU magic with no loops or branches.
3
Leveraging Rust in our Java database
A guide to adding Rust to a Java codebase with JNI and the rust-maven-plugin.
4
Designing a new concurrent data structure
How to design a lock-free data structure? A detective story for curious developers.
5
Fuzz testing: the best thing to happen to our application tests
Fuzz tests have helped us catch many critical bugs. Should your team consider fuzz testing? They're the best thing to happen to our application tests so far.