Notes for March 23–29

Work ate the week again. I’m exhausted, running on fumes, and daylight saving time stole an hour of sleep I could not afford–the biannual clock shuffle is one of those vestigial ab(...)

#agents #ai #arm64 #autoresearch #basiliskii #dev #jit #macemu #notes #refactoring #sheepshaver #weekly

https://taoofmac.com/space/notes/2026/03/29/1300?utm_content=atom&utm_source=mastodon&utm_medium=social

[CPython 3.15의 JIT, 다시 궤도에 오르다

CPython 3.15의 JIT가 macOS AArch64에서 테일 콜링 인터프리터 대비 11~12%, x86_64 Linux에서 5~6% 빨라지며 성능 목표를 조기 달성했다. 주요 스폰서 철수 이후에도 커뮤니티 주도 방식으로 전환해 신규 기여자를 늘리고 버스 팩터를 낮췄으며, 세부 작업 분해와 측정 인프라(doesjitgobrrr.com)가 개발 속도와 품질 개선에 크게 기여했다. 또한 트레이스 레코딩, 참조 카운트 제거, 듀얼 디스패치 같은 설계 선택이 JIT 성능 향상의 핵심 요인으로 작용했고, 프리 스레딩은 3.15/3.16을 목표로 계속 진행 중이다.

https://news.hada.io/topic?id=27971

#cpython #python #jit #performance #compiler

You think you know what your Java code does? You don’t. The #JIT rewrites it at runtime. Harshitha Popuri & @gireeshpunam trace how bytecode turns into native optimizations inside OpenJ9.

See what actually executes in production: https://javapro.io/2026/02/18/the-runtime-illusion-what-java-really-runs/

#JVM @IBMDeveloper

New post on the Python Insider blog from Ken Jin:

"Python 3.15's JIT is now back on track"

https://blog.python.org/2026/03/jit-on-track/
#Python #JIT #performance #python315

The Settings GUI in #konform #browser was in need of some love and is now having a refresh. Several new knobs, some shuffling around to make things more cohesive and less scattered, and some edits of hints to hopefully reduce potential for confusion.

New options for:
- First-Party Isolation
- Enhanced #tracking Protection tweaking in Custom mode (useful mostly for FPI users)
- #webrtc and ICE
- #dom Push and its optional network connection
- #jit features
- WebAssembly (#wasm)
- Geolocation
- WebGPU
- Async callstacks support
- Persisting of browser history

Hints and the "advanced" options expand when clicking the "?" for parent option.

Still a bit hesitant on where global toggles for #webgpu and #webgl belong. And perhaps configuration for cross-origin referrer could also move to Browser Privacy controls?

Otherwise feels like things are coming together - What do you think? Anything you're missing or that feels out of place?

#privacy #websecurity #browsers #firefox #librewolf #userinterface #prerelease

Parallel Perl – autoparallelizing interpreter with JIT

https://perl.petamem.com/gpw2026/perl-mit-ai-gpw2026.html#/4/1/1

#HackerNews #ParallelPerl #autoparallelizing #JIT #interpreter #programming #PerlAI

https://blog.gslin.org/archives/2026/03/19/12943/python-3-15-%e7%9a%84%e6%95%88%e7%8e%87/

Python 3.15 的效率

#3.15 #engineering #jit #performance #python #software #speed