Fixing a Bug in PyPy's Incremental GC

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via pypy.org via crazyloglad

PyPy

Fixing a Bug in PyPy's Incremental GC

Introduction
Since last summer, I've been looking on and off into a weird and hard to
reproduce crash bug in PyPy. It was
manifesting only on CI, and it seemed to always happen in the AST rewriting
ph

Optimizing Javascript for fun and for profit

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via romgrk.com via deejayy

lobste.rs

Optimizing Javascript for fun and for profit

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On Tech Debt: My Rust Library is now a CDO

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via lucumr.pocoo.org via dani

Armin Ronacher's Thoughts and Writings

On Tech Debt: My Rust Library is now a CDO

Bringing the great successes of financial engineering to Rust.

Notes on debugging HotSpot's JIT compilation (2023) https://jornvernee.github.io/hotspot/jit/2023/08/18/debugging-jit.html

Jorn Vernee

Notes on debugging HotSpot’s JIT compilation

Typically when you compile a Java program, it is first compiled into bytecode by a Java compiler. However, this bytecode is not optimized yet. In HotSpot (OpenJDK’s JVM) this instead happens at runtime, and is done by a JIT, a Just-In-Time compiler. This…

Bump Allocation: Up or Down? https://coredumped.dev/2024/03/25/bump-allocation-up-or-down/

coredumped.dev

Bump Allocation: Up or Down?

Back in 2019, Nick Fitzgerald published always bump downwards, an article making the case that for bump allocators, bumping “down” (towards lower addresses) is better than bumping up. The biggest reasons for this are bumping up requires 3 branches vs 2 for…

Turbocall – Just-in-time compiler for Deno FFI https://divy.work/turbocall.html

Littledivy

Turbocall: the Just-in-time compiler for Deno FFI

Trip report: Winter ISO C++ standards meeting (Tokyo, Japan)

via Sutter’s Mill (author: Herb Sutter)

Sutter’s Mill

Trip report: Winter ISO C++ standards meeting (Tokyo, Japan)

Moments ago, the ISO C++ committee completed its third meeting of C++26, held in Tokyo, Japan. Our hosts, Woven by Toyota, arranged for high-quality facilities for our six-day meeting from Monday t…

DuckDB as the New jq https://www.pgrs.net/2024/03/21/duckdb-as-the-new-jq/

Paul Gross's Blog

DuckDB as the New jq

Recently, I’ve been interested in the DuckDB project (like a SQLite geared towards data applications). And one of the amazing features is that it has many data importers included without requiring extra dependencies. This means it can natively read and parse…

GoFetch: New side-channel attack using data memory-dependent prefetchers https://gofetch.fail

gofetch.fail

GoFetch: Breaking Constant-Time Cryptographic Implementations Using Data Memory-Dependent Prefetchers

A new microarchitectural side-channel attack exploiting data memory-dependent prefetchers in Apple silicons.

“3·21”东航MU5735航空器飞行事故调查进展公布

经调查：

- 事发航班飞行机组及客舱机组持有效执照、证件，飞行、执勤、休息时间满足规定，当日飞行前健康体检合格，机组资质及配置符合要求；
- 事发飞机适航证件有效，相关维修人员资质符合要求；
- 起飞前未发现飞机系统、机身结构、发动机等存在故障或异常情况，无故障保留；
- 起飞机场当日相关作业保障人员资质符合要求，设施设备工作正常，作业和操作符合工作程序；
- 相关空中交通管制人员资质符合要求，通信导航监视设备工作正常，事发前无线电通信和管制指挥未见异常，事发时飞机所在空域及航路飞行高度层无危险天气报告；
- 事发航班装载符合要求，无申报为危险品的货邮，无证据表明货邮和行李中存在危险品。

后续，技术调查组将继续开展实验验证及原因分析等工作，并根据调查进展情况及时发布相关信息。

https://mp.weixin.qq.com/s/Y4mL9_3a-NXUAtY6Mu7sAA

Weixin Official Accounts Platform

“3·21”东航MU5735航空器飞行事故调查进展公布

Intel 8080 emulator. 19th IOCCC. Best of Show https://nanochess.org/emulator.html

nanochess.org

Toledo 8080 processor emulator

An Intel 8080 processor emulator written in less than 4K of C language and able to run CP/M. It won the Best of Show category (first place) of the 19th IOCCC. The 8080 originated the Zilog Z80 and started the personal computer's revolution.

Show HN: File-based cache for slow Python functions https://docs.sweep.dev/blogs/file-cache

docs.sweep.dev

Sweep AI Documentation

The official documentation for Sweep AI.

今日微软翻译：key binding = 密钥绑定

Compiling with Constraints https://www.philipzucker.com/compile_constraints/

Hey There Buddo!

Compiling With Constraints

There are lots of interesting little subproblems in compilation like instruction selection, register allocation and instruction scheduling. These can be expressed in declarative interlinked way to constraint solvers.

Cranelift code generation comes to Rust https://lwn.net/SubscriberLink/964735/8b795f23495af1d4/