Hacker News with Generative AI: Performance

Fun with IP Address Parsing (dave.tf)
In my quest to write a fast IPv4+6 parser, I wrote a slow-but-I-think-correct parser, to use as a base of comparison. In doing so, I discovered more cursed IP address representations that I was previously unaware of. Let’s explore together!
Programming, Networking, Performance, IP Addresses
17 points by marbu 12 hours ago | 3 comments
Review: Ryzen AI CPU makes the Framework Laptop 13 the fastest has ever been (arstechnica.com)
With great power comes great responsibility and subpar battery life.
Hardware, Reviews, Laptops, Performance
20 points by freeqaz 2 days ago | 1 comments
Fundamental flaws of SIMD ISAs (2021) (bitsnbites.eu)
According to Flynn’s taxonomy SIMD refers to a computer architecture that can process multiple data streams with a single instruction (i.e. “Single Instruction stream, Multiple Data streams”).
Computer Architecture, SIMD, Performance, ISA
147 points by fanf2 2 days ago | 129 comments
Searching for the cause of hung tasks in the Linux kernel (cloudflare.com)
Depending on your configuration, the Linux kernel can produce a hung task warning message in its log.
Linux Kernel, Debugging, Performance, Operating Systems
6 points by tanelpoder 2 days ago | 0 comments
Linux 6.15 lands fix for 3x Nginx regression (phoronix.com)
The Linux 6.15 kernel has just merged a fix for the big performance regression I spotlighted yesterday on Phoronix with a huge hit to the Nginx HTTPS web server performance that could see a 3x regression from the in-development Linux 6.15 kernel code. It turns out other workloads/applications also were negatively impacted by this regression. While a stumper at first even with the bisected commit, the issue was luckily resolved very quickly.
Linux Kernel, Performance, Nginx, Web Server, Open Source
24 points by dabinat 2 days ago | 0 comments
How ZGC allocates memory for the Java heap (joelsiks.com)
This post explores how ZGC, one of the garbage collectors in the OpenJDK, allocates memory for the Java heap, focusing on enhancements introduced in JDK-8350441 with the Mapped Cache. A garbage collector does much more than just collect garbage - and that’s what I want to unpack in this post. Whether you’re a Java nerd yearning for details, a GC enthusiast, or just curious about how ZGC uses memory behind the scenes, this deep dive is for you.
Java, Garbage Collection, OpenJDK, Memory Management, Performance
84 points by lichtenberger 3 days ago | 18 comments
Linux 6.15 Git Tanked Nginx HTTPS Web Server Performance (phoronix.com)
With the Linux 6.15 kernel settling down nicely, I've been testing out the current Linux Git state on more systems in looking for any performance changes. Unfortunately this week I ran into a large performance regression affecting the Nginx HTTP(S) web server. Here's a look at that problem currently affecting Linux Git.
Linux, Performance, Web Server, Nginx, Kernel
6 points by LinuxBender 3 days ago | 0 comments
Exploiting Undefined Behavior in C/C++ Programs: The Performance Impact [pdf] (ist.utl.pt)
C/C++, Programming, Performance, Security, Undefined Behavior
86 points by luu 4 days ago | 70 comments
ClickHouse gets lazier and faster: Introducing lazy materialization (clickhouse.com)
Imagine if you could skip packing your bags for a trip because you find out at the airport you’re not going. That’s what ClickHouse is doing with data now.
Data Storage, Databases, Performance, ClickHouse
363 points by tbragin 4 days ago | 121 comments
Nerdlog: Fast, multi-host TUI log viewer with timeline histogram (dmitryfrank.com)
Loosely inspired by Graylog/Kibana, but without the bloat. Pretty much no setup needed, either.
Logging, User Interfaces, Performance, Open Source
8 points by todsacerdoti 5 days ago | 0 comments
Unpowered SSD endurance investigation finds data loss and performance issues (tomshardware.com)
SSD, Performance, Hardware, Storage, Testing
123 points by progval 7 days ago | 87 comments
Solidjs: Simple and performant reactivity for building user interfaces (solidjs.com)
Solidjs, User Interfaces, JavaScript, Web Development, Performance
313 points by lastdong 7 days ago | 171 comments
Everything You Need to Know About Incremental View Maintenance (materializedview.io)
Incremental view maintenance has been a hot topic lately.
Database, Data Management, Optimization, Performance
9 points by riccomini 8 days ago | 6 comments
Less Slow C++ (github.com/ashvardanian)
Learning how to write "Less Slow" code in C++ 20, C 99, CUDA, PTX, & Assembly, from numerics & SIMD to coroutines, ranges, exception handling, networking and user-space IO
C++, Programming, Optimization, Performance, Low-Level Programming
198 points by ashvardanian 8 days ago | 97 comments
Memory Size Matters to PostgreSQL (pgdba.org)
Nowadays it’s not uncommon to deal with machines with hundreds of GB of RAM.
Databases, PostgreSQL, Performance
60 points by PaulHoule 8 days ago | 11 comments
OpenBSD IO Benchmarking: How Many Jobs Are Worth It? (rsadowski.de)
This post explores these questions through detailed fio(1) benchmarking, looking at random reads, random writes, and latency — all running on a recent build of OpenBSD 7.7-current.
Operating Systems, Benchmarking, Performance, OpenBSD
3 points by adamrt 9 days ago | 0 comments
Cutting down Rust compile times from 30 to 2 minutes with one thousand crates (feldera.com)
By simply changing how we generate Rust code under the hood, we’ve made Feldera’s compile times scale with your hardware instead of fighting it. What used to take 30–45 minutes now compiles in under 3 minutes, even for complex enterprise-scale SQL.
Rust, Programming, Performance, Optimization, Software Development
143 points by Qadriq 9 days ago | 87 comments
The new Framework 13 HX370 (world.hey.com)
The new AMD HX370 option in the Framework 13 is a good step forward in performance for developers.
Hardware, Laptops, Performance, Development
9 points by unripe_syntax 9 days ago | 1 comments
Unpowered SSD endurance investigation finds data loss, performance issues (tomshardware.com)
SSD, Data Storage, Hardware, Performance, Testing
11 points by lentoutcry 9 days ago | 0 comments
The Promise of Rust (fasterthanli.me)
The part that makes Rust scary is the part that makes it unique.
Programming Languages, Rust, Performance
31 points by 0xedb 9 days ago | 11 comments
Cutting Down Rust Compile Times with One Thousand Crates (feldera.com)
By simply changing how we generate Rust code under the hood, we’ve made Feldera’s compile times scale with your hardware instead of fighting it.
Rust, Programming Languages, Optimization, Performance, Software Development
13 points by todsacerdoti 10 days ago | 0 comments
NPB-Rust: NAS Parallel Benchmarks in Rust (arxiv.org)
Rust is a performant low-level language that promises memory safety guarantees with its compiler, making it an attractive option for HPC application developers.
Rust, Performance, Programming Languages
6 points by aw1621107 11 days ago | 1 comments
Four Kinds of Optimisation (2023) (tratt.net)
Premature optimisation might be the root of all evil, but overdue optimisation is the root of all frustration. No matter how fast hardware becomes, we find it easy to write programs which run too slow. Often this is not immediately apparent. Users can go for years without considering a program’s performance to be an issue before it suddenly becomes so — often in the space of a single working day.
Software Development, Optimization, Performance, Programming, Technical
40 points by alexharri 12 days ago | 14 comments
Significant performance improvements with Edge 134 (windows.com)
We’re very proud to say that, starting with version 134, Microsoft Edge is up to 9% faster as measured by the Speedometer 3.0 benchmark.
Microsoft Edge, Web Browsers, Performance, Benchmarking
60 points by ksec 13 days ago | 71 comments
ArkType: Ergonomic TS validator 100x faster than Zod (arktype.io)
📈 Announcing ArkType 2.1 📈Search⌘K
TypeScript, Validation, Performance, Software, New Releases
192 points by nathan_phoenix 14 days ago | 71 comments
Firecracker Entropy for VM Clones (github.com/firecracker-microvm)
This document provides a high level perspective on the implications of restoring multiple VM clones from a single snapshot.
Virtualization, Cloud Computing, Security, Performance, Snapshots
11 points by transpute 14 days ago | 0 comments
Deno Under TinyKVM in Varnish (varnish-software.com)
A little bit about compute in Varnish Cache and some Deno JS benchmarksHey all. I recently wrote about TinyKVM, a sandbox with native performance. This time I want to write about how you can try it out as a compute framework in Varnish Cache.
Varnish, Deno, JavaScript, Performance, Benchmarks
100 points by perbu 15 days ago | 28 comments
Learning Assembly for Fun, Performance and Profit (thechipletter.substack.com)
Low-level languages have been in the news recently. Use of Nvidia’s ptx has been revealed as part of DeepSeek’s ‘secret sauce’. And there is still plenty of interest in learning assembly language. A recent Substack post advocating learning assembly language for the venerable, but well loved, 6502 as a first step garnered over 240 ‘upvotes’ and more than 290 comments on Hacker News.
Assembly Language, Programming, Performance, Computer Architecture, Hardware
78 points by klelatti 16 days ago | 15 comments
Dice and Queues (justincartwright.com)
One of the key insights from queuing theory is that the average queue size for an unbounded system tends to increase significantly as utilization approaches 100%.
Queueing Theory, Performance, Systems
65 points by jcartw 16 days ago | 17 comments
We ended up rewriting NuGet Restore in .NET 9 (microsoft.com)
This is the story of how team members across NuGet, Visual Studio, and .NET embarked on a journey to fully rewrite the NuGet Restore algorithm to achieve break-through scale and performance.
.NET, Software Development, Performance, NuGet, Visual Studio
39 points by runesoerensen 17 days ago | 0 comments