Top 8 microarchitecture Open-Source Projects

XiangShan

32 4,294 9.3 Scala

Open-source high-performance RISC-V processor

Project mention: Loongson 3A6000: A Star Among Chinese CPUs | news.ycombinator.com | 2024-03-16

Are you calling for the government to pick a winner? The Chinese word for this fierce if at times chaotic competition is "juan". It worked for them in EV and PV. The outcome remains to be seen in chips and commercial space launches. But even their mostly (ex-)students-run open source Xiangshan RiscV project https://github.com/OpenXiangShan/XiangShan shows a remarkable level of sophistication.

cpu_features

2 2,370 7.4 C++

A cross platform C99 library to get cpu features at runtime.

Project mention: Vision Processing Platform-JH7110 | /r/RISCV | 2023-04-26

Looks like something that's still to be added to https://github.com/google/cpu_features/blob/main/src/impl_riscv_linux.c

InfluxDB

www.influxdata.com sponsored

Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
cpufetch

18 1,763 8.1 C

Simple yet fancy CPU architecture fetching tool
microarchitecture-cheatsheet

7 177 3.5

X86 CPU topics overview for developers , oriented towards performance
frameworks

1 57 1.8 C

Microarchitectural attack development frameworks for prototyping attacks in native code (C, C++, ASM) and in the browser (by libtea)
peakperf

2 56 4.4 C++

Achieve peak performance on x86 CPUs and NVIDIA GPUs
kth

4 27 7.5 Python

High performance Bitcoin development platform

Project mention: Only 2 Node Projects are Ready for the Upgrade Coming in Just Over 2 Weeks? Are we heading for a big fork? | /r/btc | 2023-04-27

Knuth supports it since 0.32: https://github.com/k-nuth/kth/releases/tag/v0.32.0

WorkOS

workos.com sponsored

The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.
Kite

1 13 5.8 C++

Kite: Architecture Simulator for RISC-V Instruction Set (by yonseicasl)

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020). The latest post mention was on 2024-03-16.