1
Investigating Linux phantom disk reads
An investigation of weird hardware utilization highlighting some interesting Linux kernel behaviors.
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
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.
3
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.
4
How we achieved write speeds of 1.4M rows per second
The detailed story of how to build a vector-based storage model from scratch.
5
The Inner Workings of Distributed Databases
Comparison of replication options of time-series databases.
6
Using SIMD to aggregate billions of values per second
How SIMD instructions make aggregations faster in QuestDB, including benchmark results and a comparison with Postgres.
7
Making a trading Gameboy: A pocket exchange and algo trading platform
An exchange and algo trading station in your pocket!
8
Leveraging Rust in our Java database
A guide to adding Rust to a Java codebase with JNI and the rust-maven-plugin.
9
Running Databases on Kubernetes
Things to consider when running a database on Kubernetes.
10
NYC taxi meter and options pricing
An experiment analyzing the NYC taxi dataset through the eyes of an options trader.
11
Designing a new concurrent data structure
How to design a lock-free data structure? A detective story for curious developers.
12
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.