Profiling Java apps: breaking things to prove it works
DEV Community • 2026-04-08 21:51

Profiling Java apps: breaking things to prove it works

Coroot already does eBPF-based CPU profiling for Java. It catches CPU hotspots well, but that's all it can do. Every time we looked at a GC pressure issue or a latency spike caused by lock contention, we could see something was wrong but not what. We wanted memory allocation and lock contention profiling. So we decided to add async-profiler support to coroot-node-agent. The goal: memory allocatio...

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6m read
I Scanned 42 US Government Websites Two Weeks Before the ADA Title II Deadline
DEV Community • 2026-04-08 21:49

I Scanned 42 US Government Websites Two Weeks Before the ADA Title II Deadline

What 42 Government Websites Actually Look Like On April 24, 2026, a piece of the ADA that most people never thought about becomes enforceable. State and local governments must make their websites and mobile apps accessible using WCAG 2.1 Level AA standards. You have 16 days left if you live in a place with more than 50,000 people. I wanted to know how ready the states are. Not through ...

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9m read
DEV Community • 2026-04-08 21:49

How I Built a Persistent Memory Layer for AI Coding Tools

If you use AI coding assistants daily, you have felt this pain. You open a new session with Claude Code, Cursor, or Copilot, and you spend the first twenty minutes re-explaining your project structure, your preferences, the bug you fixed yesterday, the architectural decisions you made last week. The AI has no idea. Every session starts from absolute zero. I started measuring this. In my own workf...

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11m read
Experienced Devs • 2026-04-08 21:48

I maintain the "RAG Techniques" repo (27k stars). I finally finished a 22-chapter guide on moving from basic demos to production systems

Hi everyone, I’ve spent the last 18 months maintaining the RAG Techniques repository on GitHub. After looking at hundreds of implementations and seeing where most teams fall over when they try to move past a simple "Vector DB + Prompt" setup, I decided to codify everything into a formal guide. This isn’t just a dump of theory. It’s an intuitive roadmap with custom illustrations and side-...

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1m read
It's Official: Earth's Magnetic North Pole Shifted Again, and It's Moving Into Unmapped Magnetic Territory
newest submissions : multi • 2026-04-08 21:47

It's Official: Earth's Magnetic North Pole Shifted Again, and It's Moving Into Unmapped Magnetic Territory

submitted by /u/Tymofiy2 to r/worldnews [link] [comments]

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1m read
[XPOST] We're digging into how AI can deny your insurance claims. AUA!
newest submissions : multi • 2026-04-08 21:46

[XPOST] We're digging into how AI can deny your insurance claims. AUA!

submitted by /u/abrownn to r/technology [link] [comments]

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1m read
DEV Community • 2026-04-08 21:45

Local LLM Integration in .NET: Running Phi-4, Llama 3 & Mistral With ONNX Runtime

Running large language models on your .NET applications is no longer sci-fi — it's production-ready reality. Why Local Inference Matters Cost Savings Developers running intensive AI-assisted workflows often report monthly bills in the $200-$400 range. Switching development and testing traffic to a local model brings that dramatically down — often to under $50/month for the s...

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3m read
newest submissions : multi • 2026-04-08 21:45

Ceasefire is threatened as Israel expands Lebanon strikes and Iran closes strait again

submitted by /u/TourMission to r/news [link] [comments]

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1m read
newest submissions : multi • 2026-04-08 21:44

insanely great browser engine optimized for apple silicon. i opened 150 tabs. ~2gb ram. unlike brave which is still a bloated chromium wrapper.

i've been deep in apple silicon optimization for a while — llm inference engines (got a lot of support on r/macstudio), memory schedulers, the whole thing. but the browser kept bothering me. chrome turns memory pressure yellow after 10 tabs. brave markets itself as the fast one but it's just chromium with a different coat. even safari treats your background tabs like static objects to cache or kil...

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1m read
CSS Fan wobbles
Cascading Style Sheets • 2026-04-08 21:43

CSS Fan wobbles

Hey there, I've never worked on fans before but so far I've dismantled the blades. For 9 years now by memory, the fan has been able to wobble and unsure if this is an easy fix. I never really bothered with it and rarely use it besides for light. This fan was installed in 2004 when the house was remodeled. We might just install a new one. Thanks! submitted by /u/ascendtek [lin...

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1m read
Array basic methods in j.s
DEV Community • 2026-04-08 21:42

Array basic methods in j.s

In javascript,array methods are built in the functions that help you add,remove,or manipulate elements in the array. 1. Array length The length is property that tells you how many elements are in an array. EXAMPLE: Inside the array have a 4 elements.So the size of length is 4. OUTPUT: 4 2. Array toString() The toString() array method that coverets an array an array into a comma se...

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3m read
newest submissions : multi • 2026-04-08 21:38

Are there other any free web based sms calling/texting sites like google voice? (ID verification failed on google voice)

submitted by /u/jupole1 to r/technology [link] [comments]

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1m read
DEV Community • 2026-04-08 21:38

Find me an app or Build me an app?

Why be a developer now? When I had graduated in 2016, Software Development was at its peak so they said. And when go get placed there then you know you are a debugger. You don't get to write code or touch the main code or even understand anything. As the resources were scarce all you can do is find a snippet on google from stack-overflow, Understand and try debugging just the syntax. You think ...

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2m read
As Trump claims victory, Iran emerges bruised but powerful with leverage over Hormuz
newest submissions : multi • 2026-04-08 21:37

As Trump claims victory, Iran emerges bruised but powerful with leverage over Hormuz

submitted by /u/InsatiablePrism to r/worldnews [link] [comments]

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1m read
Spanish officials cull thousands of wild boars to protect pork industry from swine fever threat
newest submissions : multi • 2026-04-08 21:36

Spanish officials cull thousands of wild boars to protect pork industry from swine fever threat

submitted by /u/CalpurniaSomaya to r/worldnews [link] [comments]

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1m read
DEV Community • 2026-04-08 21:35

SQLite Internals, PostgreSQL Extensions & Performance Tuning Updates

SQLite Internals, PostgreSQL Extensions & Performance Tuning Updates Today's Highlights This week's highlights feature deep dives into SQLite's WITHOUT ROWID optimization for clustered indexes, a new PostgreSQL extension for ANN search and GraphRAG, and a major PGTune update for modern PostgreSQL performance tuning. pg_sorted_heap v0.13.0: PostgreSQL Extension f...

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3m read
ATX Power Supply Timings Exploration and Visualization
newest submissions : multi • 2026-04-08 21:35

ATX Power Supply Timings Exploration and Visualization

As part of LTT Labs standard power supply test suite we developed a test to measure the timings required by the ATX specification. It turns out not to be too much of a differentiator between power supplies, but it is still an interesting subject, and one of the many things being relied on when you turn on your computer. submitted by /u/LabsLucas to r/hardware [l...

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1m read
newest submissions : multi • 2026-04-08 21:35

Good ShipGear / StarShip Alternatives?

We've been on ShipGear for a couple years now and since the rebrand to StarShip the pricing just makes less and less sense. We're doing around 2000 shipments a month across UPS and FedEx and I feel like we're overpaying for what we get at this point. Support has been slow too. What are people using these days? submitted by /u/2-x-4 to r/software [link] [comments...

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1m read
newest submissions : multi • 2026-04-08 21:35

Looking for recommendation on book inventory management

Hey all, I work at a small publishing house where we distribute books to several bookstores across the country and we're currently looking to upgrade our inventory tracking from Excel to something better. We're looking for a software that allows us to make and track movements from our warehouse to the stores and make sales reports, with the caveat that we have to enter sales manually due to the s...

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1m read
newest submissions : multi • 2026-04-08 21:33

We lost $47K because of a single SQL query (the production disaster that taught me to always check query plans)

3:47 AM. Phone lights up. Production is down. Payment processing failing. API response times: 200ms → 12 seconds. Database CPU: 100%. Connection pool: exhausted. Friday night. Peak traffic. Our biggest sale of the quarter. By the time we recovered: $47,000 in lost revenue. The cause? One line I added two weeks earlier: WHERE user_verified = true Looked fine. Tested in dev (500 rows). Tested in sta...

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1m read
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