Meta
A surreal but compelling LLM experiment with Age of Empires II; how a Texas city sold land meant for a park to a data center company; and the Madison Square Garden hack.
Space Tech
Physicists have discovered that the dark matter structures that scaffold the universe—known as the “cosmic web”—are far larger and more persistent than expected, challenging a core assumption about the universe.
Privacy
We spoke to Darren Blanchard, the man arrested while speaking out against data centers at a community meeting. He's sharing the bodycam footage of his arrest for the first time with 404 Media.
X / Twitter
This week, we discuss talking aloud to computers, Cannes, and “Engineering Creativity: Guac Is Extra."
Storage Systems
Robotics
Anthropic
C++
LLM Evaluation
Qualcuno esperto di database potrebbe darmi un parere su un progetto? Dettagli in dm submitted by /u/ReflectionNo3897 [link] [comments]
AI Psychosis
Linux Kernel
There is a misconception I keep running into, and it causes real harm in production. People are afraid to increase checkpoint_timeout. They think a longer timeout means a longer recovery after a crash. So they set it to 5 minutes. Some set it to 1 minute. And then they wonder why their Postgres is struggling. Let me dismantle this fear, argument by argument. First: serious people have a replica 🔗If you care about availability, you have at least one replica you can fail over to.
Web Performance
submitted by /u/No_Test5184 [link] [comments]
Prompt Engineering
C++
Spotify
PostgreSQL
PostgreSQL 13 made hash aggregation memory-safe by allowing it to spill to disk — but that safety introduced a surprise regression for some queries on upgrade.
Anthropic
Space Tech
MySQL
Etsy has maintained a sharded MySQL architecture since around 2010. This database cluster contains most of Etsy’s online data and is made up of ~1,000 tables distributed across ~1,000 shards. Over the last 16 years, it has grown significantly: combined, these tables have over 425 TB of data and receive roughly 1.7 million requests per second. Etsy engineers access our MySQL data through a proprietary object-relational mapping (ORM). The ORM has a corresponding model for each MySQL table. W...
Artificial Intelligence
When buyers search on Etsy, they need to quickly and easily find the perfect item. At the same time, sellers need to be confident their unique products are being seen by the right customers. Our Ads Search ranking model, which is built on a multitask learning foundation, is the critical link in this connection. Recently, we identified an opportunity to drive more meaningful buyer engagement by enhancing our model’s ability to predict purchase intent. We achieved this via a dual-pronged impr...
RAG
Etsy’s marketplace is defined by the creativity and craftsmanship of our sellers and the hundreds of millions of highly diverse products they offer. You can find silversmiths who cold-forge recycled sterling silver, weavers who dye raw fleece with indigo and black walnut, and ceramicists who throw stoneware on a kick wheel. These details define each product and often determine whether it matches a buyer’s taste, style, and interests. Sometimes buyers know exactly what they want, searching...
Artificial Intelligence
Java
Meta
X / Twitter
Reverse Engineering
AI Agents
Agentic Commerce and Payments
DNS
Meta
Startups and Venture
OpenAI
OpenAI
OpenAI
AI Hardware
AI Inference
Microsoft AI
PostgreSQL
Why do we still waste time browsing YouTube and news sites looking for interesting content? Why rely on someone else's algorithm — when Claude, for instance, retains conversation history in one form or another and can therefore assess our actual interests? Maybe it's time to take control of shaping our own "information bubble"?In systems programming, reliability, maintainability, and extensibility usually matter more than new features. That makes AI agents genuinely hard to apply well. If I...
EVs and Transportation
I have been learning database internals recently, especially buffer pools and page replacement policies. Instead of only reading about them, I started building a small C++ project called evict-benchmark where I implement eviction policies from scratch and benchmark how they behave under different access patterns. Then I want to run them against workloads such as: Uniform random accesses Sequential scans Zipfian / skewed accesses Hot-and-cold workloads Looping scans Mixed OLTP-style patterns ...
AGI and AI Safety
MySQL
Etsy has maintained a sharded MySQL architecture since around 2010. This database cluster contains most of Etsy’s online data and is made up of ~1,000 tables distributed across ~1,000 shards. Over the last 16 years, it has grown significantly: combined, these tables have over 425 TB of data and receive roughly 1.7 million requests per second. Etsy engineers access our MySQL data through a proprietary object-relational mapping (ORM). The ORM has a corresponding model for each MySQL table. W...
Artificial Intelligence
When buyers search on Etsy, they need to quickly and easily find the perfect item. At the same time, sellers need to be confident their unique products are being seen by the right customers. Our Ads Search ranking model, which is built on a multitask learning foundation, is the critical link in this connection. Recently, we identified an opportunity to drive more meaningful buyer engagement by enhancing our model’s ability to predict purchase intent. We achieved this via a dual-pronged impr...
RAG
Etsy’s marketplace is defined by the creativity and craftsmanship of our sellers and the hundreds of millions of highly diverse products they offer. You can find silversmiths who cold-forge recycled sterling silver, weavers who dye raw fleece with indigo and black walnut, and ceramicists who throw stoneware on a kick wheel. These details define each product and often determine whether it matches a buyer’s taste, style, and interests. Sometimes buyers know exactly what they want, searching...