magic-trace collects and displays high-resolution traces of what a process is doing

A bogus CPU emulator written in Rust.

Apache Arrow is a multi-language toolbox for accelerated data interchange and in-memory processing

Blazingly fast analytics database that will rapidly devour all of your data.

This is an online course where you can learn and master the skill of low-level performance analysis and tuning.

1️⃣🐝🏎️ The One Billion Row Challenge -- A fun exploration of how quickly 1B rows from a text file can be aggregated with Java

All pdfs of Victor Eijkhout's Art of HPC books and courses

SirixDB is an an embeddable, bitemporal, append-only database system and event store, storing immutable lightweight snapshots. It keeps the full history of each resource. Every commit stores a spac…

🐰 Bencher - Continuous Benchmarking

libSQL is a fork of SQLite that is both Open Source, and Open Contributions.

Cloud-native search engine for observability. An open-source alternative to Datadog, Elasticsearch, Loki, and Tempo.

Scalable datastore for metrics, events, and real-time analytics

Tantivy is a full-text search engine library inspired by Apache Lucene and written in Rust

LibSQL with extended capabilities like HTTP protocol, replication, and more.

Extensible SQL Lexer and Parser for Rust

Apache DataFusion SQL Query Engine

Parsing gigabytes of JSON per second : used by Facebook/Meta Velox, the Node.js runtime, ClickHouse, WatermelonDB, Apache Doris, Milvus, StarRocks

Concurrency Patterns and features found in Java, through multithreaded programming. Threads, Locks, Atomics and more.

Sampling CPU and HEAP profiler for Java featuring AsyncGetCallTrace + perf_events

List of Computer Science courses with video lectures.

Experimenting with persistence in C

A better compressed bitset in Java: used by Apache Spark, Netflix Atlas, Apache Pinot, Tablesaw, and many others

Java large off heap cache

Mirror of Apache Cassandra

Mirror of Apache Cassandra containing DataStax open source code.

Free and Open, Distributed, RESTful Search Engine

CrateDB is a distributed and scalable SQL database for storing and analyzing massive amounts of data in near real-time, even with complex queries. It is PostgreSQL-compatible, and based on Lucene.

Fast and reliable message broker built on top of Kafka.