🏄‍♂️ SRE 冲浪记 - 1

date
Jul 24, 2023
slug
sre-surfing-1
status
Published
tags
surfing
tech
summary
冲浪记
type
Post
循礼门夜市，狭长走道，深蓝色天空
循礼门夜市，狭长走道，深蓝色天空
观点Go for range 的坑Discord 为什么用 Rust 代替 Go延展阅读：像 Rust 一样写 PythonPython vs Rust: 异步网络框架性能对比Threads 还是用的 Python + Django延展阅读：Instagram 如何将 Python2 升级到 3延展思考：我们应该改用 Cinder 吗? No.为什么我讨厌 Asyncio ?有人在上云，有人在下云实践如何组织超级大的 Python 单体应用延伸关注：Import Linter使用随即排序的 QuerySet 来减少测试的不稳定性在 Python 中增加尾调用优化技术文章和技术分享的一些经验小憩Go proposal: 使用 .ʕ◔ϖ◔ʔ 作为 Go 文件的后缀名行为艺术：此地无银三百两K8SGPT - 用简单的英语扫描 Kubernetes 集群、诊断和分类问题的工具

观点

Go for range 的坑

Go 团队将修改 for 循环变量的语义，Go1.21 新版本即可体验！
大家好，我是煎鱼。 之前有提到 Go for 循环变量的问题，许多面试题和泄露与此有关。 Russ Cox（下称：rsc）甚至一度表示他一直在研究这个问题，认为当前语义的代价是很大的，想看看能不能进行变更。 经过 Go1 向…
Go 团队将修改 for 循环变量的语义，Go1.21 新版本即可体验！
https://zhuanlan.zhihu.com/p/641611712

Discord 为什么用 Rust 代替 Go

Why Discord is switching from Go to Rust
Rust is becoming a first class language in a variety of domains. At Discord, we’ve seen success with Rust on the client side and server…
Why Discord is switching from Go to Rust
https://medium.com/discord-engineering/why-discord-is-switching-from-go-to-rust-a190bbca2b1f
Why Discord is switching from Go to Rust

延展阅读：像 Rust 一样写 Python

Writing Python like it’s Rust
I started programming in Rust several years ago, and it has gradually changed the way I design programs in other programming languages, most notably in Python. Before I started using Rust, I was usually writing Python code in a very dynamic and type-loose way, without type hints, passing and returning dictionaries everywhere, and occasionally falling back to “stringly-typed” interfaces. However, after experiencing the strictness of the Rust type system, and noticing all the problems that it prevents “by construction”, I suddenly became quite anxious whenever I got back to Python and wasn’t provided with the same guarantees.
Writing Python like it’s Rust
https://kobzol.github.io/rust/python/2023/05/20/writing-python-like-its-rust.html
作者从 Rust 编写习惯出发，重新审视了 Python 的“静态”写法。我作为不写 Rust 老 Pythonista，文章里面绝大多数的提议已经是习以为常了，但重新从 Rust 视角过一遍还是很有意思的。

Python vs Rust: 异步网络框架性能对比

Benchmarking Python and Rust Async Web Server Performance
Benchmarks showing how Python's Blacksheep and Uvicorn stack up to a Rust solution using Axum and Tokio.
Benchmarking Python and Rust Async Web Server Performance
https://codesolid.com/benchmarking-python-and-rust-async-web-server-performance/
Benchmarking Python and Rust Async Web Server Performance
文章里对比的异步框架有限，但是也提供了一个视角，仅在异步场景下，Python 和 Rust 的差距没有那么大。

Threads 还是用的 Python + Django

Twitter劲敌Threads注册量已破三千万，后端基于CPython深度“魔改”
Python YYDS！
Twitter劲敌Threads注册量已破三千万，后端基于CPython深度“魔改”
https://mp.weixin.qq.com/s/Rxy_nWzivLZyT7TjXiy_BQ
Twitter劲敌Threads注册量已破三千万，后端基于CPython深度“魔改”

延展阅读：Instagram 如何将 Python2 升级到 3

Instagram 在 PyCon 2017 的演讲摘要 | Piglei
piglei 的 blog
https://www.piglei.com/articles/instagram-pycon-2017/

延展思考：我们应该改用 Cinder 吗? No.

为什么我讨厌 Asyncio ?

charles leifer | AsyncIO
charles leifer | AsyncIO
https://charlesleifer.com/blog/asyncio/

有人在上云，有人在下云

We have left the cloud
Since it took us years to get into the cloud in the first place, I originally imagined it would take us years to get out as well. But all that work to containerize our applications and prepare them for the cloud actually turned out to make it relatively easy to exit. And now, after six months of effort, it's done. We're out. The last a...
We have left the cloud
https://world.hey.com/dhh/we-have-left-the-cloud-251760fb
We have left the cloud

实践

如何组织超级大的 Python 单体应用

Kraken Technologies: How we organise our very large Python monolith
By David Seddon from Kraken Technologies. Hi, I’m David, a Python developer at Kraken Technologies. I work on Kraken: a Python application which has, at last count, 27,637 modules. Yes, you read that right: nearly 28k separate Python files - not including tests. I do this along with
Kraken Technologies: How we organise our very large Python monolith
https://blog.europython.eu/kraken-technologies-how-we-organize-our-very-large-pythonmonolith/
Kraken Technologies: How we organise our very large Python monolith

延伸关注：Import Linter

使用随即排序的 QuerySet 来减少测试的不稳定性

Django: Flush out test flakiness by randomly ordering QuerySets - Adam Johnson
Sometimes code depends on the order of a QuerySet whilst not specifying an order. This can lead to random, flaky test failures because databases can return rows in any order when none is specified. The problem is made worse by some databases, notably PostgreSQL, which nearly always return rows in insert order, but occasionally use a different order when a table has had recent deletions.
Django: Flush out test flakiness by randomly ordering QuerySets - Adam Johnson
https://adamj.eu/tech/2023/07/04/django-test-random-order-querysets/
Django: Flush out test flakiness by randomly ordering QuerySets - Adam Johnson

在 Python 中增加尾调用优化

Adding tail call optimization to Python
Tail call optimization is a great feature. It’s obviously easier to solve recursive problems recursively rather than iteratively. It’s a shame it’s not available in Python (or many other languages), so let’s add it. TL;DR The following function will result in RecursionError when its argument >= 1000 def my_fn(target_iters, iteration=0): if iteration >= target_iters: return iteration return my_fn(target_iters, iteration+1) >>> my_fn(1000) ... RecursionError: maximum recursion depth exceeded in comparison With some extra code, we can add tail call optimization
Adding tail call optimization to Python
https://blog.jonas.foo/posts/python-tail-call-optimization/

技术文章和技术分享的一些经验

如何做一个有质量的技术分享 | 酷 壳 - CoolShell
如何做一个有质量的技术分享 | 酷 壳 - CoolShell
https://coolshell.cn/articles/21589.html
如何做一个有质量的技术分享 | 酷 壳 - CoolShell

小憩

Go proposal: 使用 .ʕ◔ϖ◔ʔ 作为 Go 文件的后缀名

受到 Mojo 语言以 .🔥 作为后缀名的启发，有人提议 Go 也不要落后，可以用 .ʕ◔ϖ◔ʔ 替代 .go 。 虽然是一个以搞笑为主旨的提议，但也让人脑洞打开，如果以 Unicode Emoji 作为文件扩展名，到底会有哪些意想不到的影响，比如 Windows 是否支持？要不要把命令行的 go run 也改成 .ʕ◔ϖ◔ʔ run ？当然，也有网友选择直接“报警”：
notion image

行为艺术：此地无银三百两

notion image

K8SGPT - 用简单的英语扫描 Kubernetes 集群、诊断和分类问题的工具

没错，GPT 开始进入 SRE 领域了。
 

© bluesyu 2019 - 2024

powered by nobelium