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@wangzhr4

Creating the computing engine for next era. Cloud | Backend | Frontend | AI Infra

Shanghai, China Katılım Ekim 2022
948 Takip Edilen3.2K Takipçiler
wang
wang@wangzhr4·
@plantegg 要是每个人都这么想,人家培训班怎么赚钱呢
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plantegg
plantegg@plantegg·
今天在一个育儿群里看到一个爸爸说了句话,群里瞬间炸了。 他说:"我闺女三年级,我已经彻底放弃管她学习了。不报班,不陪写作业,每天放学就让她疯玩。" 群里立刻分成两派。一派说你这是不负责任,三年级正是拉开差距的时候,你现在不管以后她恨你。另一派说终于有个明白人了,现在的孩子被逼得连觉都睡不好,童年都没了。 我想起我自己小时候。我妈从来不管我学习,我照样考上了还不错的大学。但我一个发小,他妈从小盯着他上奥数、学英语、练钢琴,他现在在一个三线城市做销售,月薪六千,钢琴十年没碰过。 说个残酷的事实:你焦虑的那些东西——奥数金牌、英语竞赛、钢琴十级——在孩子25岁以后,没有任何一项能决定他过得好不好。真正决定一个人能不能过好这一生的,是他有没有被好好爱过,有没有学会跟自己相处。那些从小被逼到崩溃的孩子,长大后最大的成就往往是学会了原谅父母
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wang
wang@wangzhr4·
当今社会的两大范式是科学与工程。前者讲的是可重复和可验证的发现、后者说的是可持续和可演进的实施。 ​看懂这个,是看懂世界的基础。
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wang@wangzhr4·
@plantegg 它开个功能:可以用 cloudwatch logs,再收你一笔 logs 费用。
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plantegg@plantegg·
AWS 无比业余和垃圾,简直是令人发指地业务,希望你们不要踩到这个坑 AWS EC2 在八代机准确说是 Nitro V6 中将网卡上的 tcp 链接存活时间从默认的 432000 改成了 350 秒,这导致一旦你购买的EC2 是八代机就会莫名其妙地出现太多的链接失效后丢包——第一宗罪,垃圾,业余,如图 网卡在丢包的时候只丢进来的不丢出去了,还可以理解,但是丢了不给任何反馈,比如释放超过 350 秒的链接业界都会给个 RESET ,他娘的他一声不吭就干了,我他妈掐指一算(这种问题一般我掐指一算能算出来在哪一跳丢掉的),这次我手指掐没了都没掐出来,丢死人了——第二宗罪,垃圾 我不知道 AWS 的技术/产品是怎么考虑的居然做这个修改 只能说云计算这个门槛太低了,钱太好赚了,另外就是忽悠了不懂技术的老板苦了干货的技术人员 必须加个标签以备我以后来罗列 #垃圾云计算
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wang
wang@wangzhr4·
@plantegg 我觉得这恰恰反映了分层治理的思路。infra 层面为上层业务场景提供充分灵活的参数,并不需要关心上层业务场景的复杂性。如果让内核维护者钻到上层,反倒会把节奏搞乱。
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Stefan
Stefan@schteppe·
I refer to C and C++ as “C/C++”. I’m fully aware of the language differences. I just keep writing “C/C++” to get extra engagement.
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wang@wangzhr4·
The Kubernetes native guys sometimes criticize C++, and always advocate Golang. Well, it's fine but it is just too ignorant. At least in Kubernetes networking, C/C++ is not only relevant, but also dominant. You would never touch fundamental things like Cillium with Golang only.
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wang
wang@wangzhr4·
Your mental model is essential in software engineering, regardless of which AI model you are using. Architectural design is critical, and humans are quite important there. You just cannot be too lazy to throw that part to AI. Otherwise, AI would mess up everything.
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wang
wang@wangzhr4·
@tsoding Why isn't it ++(space)i?
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Тsфdiиg
Тsфdiиg@tsoding·
People often ask me why do I choose to do pre-increments in my for-loops instead of post-increments. The answer is actually very simple. I don't fucking know, stop asking me that.
Тsфdiиg tweet media
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wang
wang@wangzhr4·
Why is that, Xiaomi, a phone and EV manufacturer, can train a model in 2025, while those tech giants shch as Amazon failed again and again in training their models? I am really curious.
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wang
wang@wangzhr4·
Yeah, the 2 pilots were saved, and that has been packed into a "heroic saving" and "treasuring every soldier's life". Hell no. That's called "shifting narratives". The war itself is wrong, no story or narrative would change that fact.
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wang@wangzhr4·
JinShan City beach. Shanghai.
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Taiwan 🇹🇼 हिन्दी
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wang@wangzhr4·
@ptr_to_joel It is slow. HPC only use C/C++/Fortran. You use JAVA to solve differential equations?
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Joel 🇦🇺
Joel 🇦🇺@ptr_to_joel·
my HPC prof was a smart mfer but i realised he knew nothing about java when he called it slow
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wang retweetledi
Ray🫧
Ray🫧@ravikiran_dev7·
Hot take: Vibe coding only works well if you already know how to code.
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wang@wangzhr4·
As a software dev, if the hiring team requires you to build a software demo to evaluate your capabilities, what would you do?
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wang@wangzhr4·
Compare to C programming, web development is so boring.
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wang
wang@wangzhr4·
You guys in Silicon Valley would never imagine how crazy the wave of OpenClaw is in China. Just insanely crazy - everyone is talking about it, every tech giant is advocating it.
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wang
wang@wangzhr4·
It is 2026, does anyone still need to practice Leetcode to get a job?
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wang@wangzhr4·
@lemire Actually, IMO, C should be the first language to understand almost everything under the hood of the modern languages. ASM is overkill.
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Daniel Lemire
Daniel Lemire@lemire·
Which programming language should you choose for teaching? Though many schools use Java, C#, C or C++, many others have adopted Python. The upside of Python is that it is somewhat easier to get going (helps motivation). The downside is that Python makes it harder to think about low-level issues such as data structures since everything is abstracted away. My own view on the matter, is that students should become polyglots. It is a strategic mistake to focus on a single programming language. But what about learning outcomes? Hott tells us that it does not matter. « there was no statistically significant difference in overall outcomes or struggle between students who complete their programming assignments solely in Python, solely in Java, or a combination thereof. Additionally, there was no statistically significant difference in overall scores on programming assignments, written problem sets, or quizzes from the course based on the language students chose when implementing their solutions. From these results, we conclude that providing students with a choice of programming language, including allowing students to program in a language they are more familiar with, does not appear to dramatically improve student outcomes. Additionally, the use of Python over Java (or consequently Java over Python) in an upper-level algorithms course does not improve performance overall, even though it may provide some benefit in isolated assignments. Therefore, educators need not worry about how the programming language chosen for their courses may impact student outcomes. » Hott, J. R. (2025, August). Student Outcomes When Provided Programming Language Choice in an Algorithms Course. In Proceedings of the 2025 ACM Conference on International Computing Education Research V. 2 (pp. 26-26). Hott has interesting research... engineering.virginia.edu/faculty/john-r… Coming back to what kids should learn, I largely agree with @lzsthw and his essay « AI Didn't Kill Programming, You Did ». Instead of worrying about which programming language we should use, we should turn things around and tell kids how to start a business, how to become independent from tech trends, and so forth. The very idea that you should standardize on one programming language should be a red flag. You can learn programming with anything. Start with Logo, Ada... Do it all! Heck!!! Invent your own programming language. learncodethehardway.com/blog/39-ai-did…
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wang
wang@wangzhr4·
有一种“改变世界”的产品(openclaw) 1. 知道的人不会装 2. 会装的人不敢装 3. 敢装的人不会用 4. 用了的人不知道干啥 5. 干点啥的人都在烧钱 ​6. 烧了钱的人都在后悔 ​ ​挺好的。
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wang@wangzhr4·
@lemire I hope so, but I am not optimistic to that.
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Daniel Lemire
Daniel Lemire@lemire·
If you submit AI generated papers, I am not going to review them.
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