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⚡ AI Lessons
Dev.to · speed engineer
🔧 Backend Engineering
⚡ AI Lesson
4w ago
Coordinated Omission: Why Your Load Testing Tool Is Lying About Your P99
The problem You run a load test targeting 1,000 requests/second. The tool reports P50 =...
Dev.to · speed engineer
🔧 Backend Engineering
⚡ AI Lesson
1mo ago
Debugging Is a Search Problem: Bisect Everything
The problem Two engineers get the same bug: a value that's correct when it enters the...
Dev.to · speed engineer
🔧 Backend Engineering
⚡ AI Lesson
2mo ago
I Lost 30% of My UDP Packets — and the Network Was Innocent
A receiver pulling a UDP feed was missing roughly 30% of its messages. No errors, no exceptions, no...
Dev.to · speed engineer
🔧 Backend Engineering
⚡ AI Lesson
2mo ago
Rust Kernel Modules, Ready-to-Ship: A cargo-generate Template with Tests, CI, and Zero-Panic…
Build production-grade kernel modules in 60 seconds — with tests, GitHub Actions, and compile-time...
Dev.to · speed engineer
🔧 Backend Engineering
⚡ AI Lesson
3mo ago
I Fired My Entire Node.js Stack — Rust Rebuilt It in 3 Weeks (The Ugly Truth)
Our API was drowning under 50ms P99 latencies. I rewrote everything in Rust expecting miracles. Got...
Dev.to · speed engineer
🔧 Backend Engineering
⚡ AI Lesson
3mo ago
gRPC Performance: tonic (Rust) vs grpc-go Benchmarked at Scale
Production benchmarks reveal the surprising winner in the battle for microsecond-level RPC...
Dev.to · speed engineer
🔧 Backend Engineering
3mo ago
Data Races Reproduced: Harnesses That Catch Heisenbugs
The testing framework that forces concurrent bugs into the open — with a 94% reproduction rate ...
Dev.to · speed engineer
🔧 Backend Engineering
3mo ago
Building Real-Time Trading Systems: Why We Abandoned Go for Rust
The microsecond-level performance data that forced our complete architectural rewrite ...
Dev.to · speed engineer
🔧 Backend Engineering
⚡ AI Lesson
3mo ago
Database Connection Pooling: We Benchmarked 7 Strategies So You Don’t Have To
The 312% throughput difference between worst and best — real production data reveals which pooling...
Dev.to · speed engineer
🔧 Backend Engineering
⚡ AI Lesson
3mo ago
Go Benchmarks That Actually Mean Something Why Your “40% Faster” Optimization Does Nothing in…
Your JSON unmarshalling drops from 250ns to 150ns. That’s 40% faster! The graphs look amazing, your...
Dev.to · speed engineer
🔧 Backend Engineering
⚡ AI Lesson
3mo ago
Network Programming Battle: io_uring in Rust vs epoll in Go
When raw throughput collides with real-world complexity, the fastest I/O model isn’t always the...
Dev.to · speed engineer
🔧 Backend Engineering
⚡ AI Lesson
3mo ago
Testing At Lightspeed: Deterministic Fakes Over Flaky Mocks
Why Google Rewrote 50,000 Mock-Based Tests and Cut Test Suite Runtime by 67% Testing At...
Dev.to · speed engineer
🔧 Backend Engineering
⚡ AI Lesson
3mo ago
UDP Telemetry Firehose: When Rust on Bare Metal Outperforms Cloud by 10x
Look, I need to tell you about this thing we did that honestly still kind of blows my mind — and I’m...
Dev.to · speed engineer
🔧 Backend Engineering
⚡ AI Lesson
3mo ago
Go Circuit Breakers That Fail Friendly: The 94% Cascade Prevention We Measured
When your downstream crashes, should your entire system follow? Building resilient failure boundaries...
Dev.to · speed engineer
🔧 Backend Engineering
⚡ AI Lesson
4mo ago
Const Generics: How We Cut 85% of Our Code and Got Faster
The day we discovered we’d been doing arrays wrong for three years Const Generics: How...
Dev.to · speed engineer
🔧 Backend Engineering
⚡ AI Lesson
4mo ago
Borrowed Strings: API Designs That Cut 94% of Allocations
The 6ms latency improvement from one character change — how &str over String transformed our hot...
Dev.to · speed engineer
🔧 Backend Engineering
⚡ AI Lesson
4mo ago
Async Traits, Hidden Allocs: Profiling Rust Futures
Our async trait refactor caused a 340% memory spike and 89% performance regression — here’s how...
Dev.to · speed engineer
🔧 Backend Engineering
⚡ AI Lesson
4mo ago
Zero-Copy Parsers: Rust Pipelines That Outrun JSON
When memory copies become your bottleneck, Rust’s zero-copy parsing delivers 200% throughput gains...
Dev.to · speed engineer
🔧 Backend Engineering
⚡ AI Lesson
4mo ago
5 Time-Tracking Habits That Save Freelancers Hours Every Week
The Hidden Tax on Freelance Income You negotiated a good rate. You delivered great work....
Dev.to · speed engineer
🔧 Backend Engineering
⚡ AI Lesson
4mo ago
Tokio Versus Goroutines: Latency Under Adversarial Load
When memory pressure meets tail latency requirements, the conventional wisdom about async runtimes...
Dev.to · speed engineer
🔧 Backend Engineering
⚡ AI Lesson
4mo ago
Go Context Timeouts That Save Real Money
How a $4.2M production outage taught us that proper context timeout implementation isn’t just good...
Dev.to · speed engineer
🔧 Backend Engineering
⚡ AI Lesson
4mo ago
I Optimized a Rust Binary From 40MB to 400KB. Here’s How
When Your “Zero-Cost Abstractions” Cost You 39.6MB I Optimized a Rust Binary From 40MB...
Dev.to · speed engineer
🔧 Backend Engineering
⚡ AI Lesson
4mo ago
Building a Linux Kernel Module in Rust: Zero Panics in 14 Months Production
How Rust’s type system prevented 23 memory safety bugs that crashed our C kernel module weekly ...
Dev.to · speed engineer
🔧 Backend Engineering
⚡ AI Lesson
4mo ago
Resilient Retries: The API Tactics That Shrink Tail Latency
The counterintuitive math of duplicate requests — when sending 2x traffic actually reduces server...
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