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The most popular blog posts about systems & performance on Hacker News. 4,387 posts.
I’ve got this rock64, which is an aarch64 board comparable to a Raspberry Pi 3 B+ with 4 gigs of ram. For years I’ve wanted to put a distribution on here that doesn’t have a premade image available, mainly because out of all the options on that page I don’t actually like any of them. Well, except NetBSD, but NetBSD…
A problem I experienced when pursuing my PhD and submitting academic articles was that I had built solutions to problems that required dramatic scale to be effective and worthwhile. Responses to my publication submissions often claimed such problems did not exist; however, I had observed them during my time within…
I have developed some interest in the Rust programming language. Rust is a systems programming language which means it gets out of the way of developers interested in reaching low-level internals of a system. What sets it aside from other systems languages though is: Borrow checking to guarantee memory safety…
Performance results naturally depend on the underlying hardware. The following benchmarks show the execution times for sorting 50 million doubles using different sorting implementations. The measurements were taken on an Apple M1 system using Clang and on an AMD Ryzen 3 Linux system using GCC , both compiled with the…
What connections are, how they affect our systems, and how and why pooling works.
Benchmarking throughput and latency of Amazon AWS Simple Storage Service (S3), Google Cloud Storage (GCS) and Microsoft Azure Storage object storage services
If you had asked me whether or not it was possible to get a 2x speedup for my LazySorted project by adding a single line of code, I would have told you "No way, substantial speedups can really only come from algorithm changes." But surprisingly, I was able to do so by adding a single line using the __builtin_prefetch…
[Updated on 2022-03-13: add expert choice routing.] [Updated on 2022-06-10]: Greg and I wrote a shorted and upgraded version of this post, published on OpenAI Blog: “Techniques for Training Large Neural Networks”
I play World of Warcraft . Being a Linux user requires me to run this in Wine , a Windows API translation layer. While Wine is continuously improving, its performance in Direct3D games still leaves much to be desired.
StringZilla v4 brings CUDA acceleration for string processing: 109x faster than Nvidia's CuDF on edit distances, plus 52-bit MinHash fingerprinting and AES-based hashing.
Personal experience with moving away from Apple's world.
Machine code isn't scary. If you can make sure your JSON conforms to a JSON schema, you can write machine code.
Microsoft’s in-house Linux, the distribution that grew out of CBL-Mariner, just hit public preview as a general-purpose cloud OS you can run on any Azure VM and coming soon to WSL.
AWK As A Major Systems Programming Language — Revisited
In case you are not yet familiar with why an initramfs (or initrd, or initial ramdisk) is typically used when starting Linux, let me quote the wikipedia definition: “[…] initrd is a scheme for loading a temporary root file system into memory, which may be used as part of the Linux startup process […] to make…
zswap and zram are fundamentally different approaches with different philosophies. If in doubt, use zswap.
In the past few years, PostgreSQL has advanced a lot in terms of features, performance, and scalability for many-core systems. However, o...
Edit (2019-04-09): A quick qualifier for future readers. This post talks about correctness in the sense of correct code and not formal proofs or formal specifications. I refer to correctness in the sense of avoidable runtime errors.
Performance budgets are an essential but under-appreciated part of product success and team health. Most partners we work with are not aware of the real-world operating environment and make inappropriate technology choices as a result. We set a time budget of less than 5 seconds first-load Time-to-Interactive and less…
A blog about computing and other fun.
Take manual control of your Linux system’s DNS resolution and keep programs from interfering with and overwriting your resolv.conf file.
So Oxide is making some cool stuff huh? Big metal boxes with lots of computer in them. Servers as they should be! Too bad I can’t afford to buy one for myself… but wait, they’re open-sourcing the software they’re writing to do it. Mom said we can have Oxide at Home!
In Sonoma, some healthy Macs are unable to retain complete logs for 24 hours because of the frequency of entries, and even when privacy is removed, some content is censored.
You're probably reading this page because you've attempted to access some part of my blog (Wandering Thoughts) or CSpace , the wiki thing it's part of. Unfortunately you're using a browser version that my anti-crawler precautions consider suspicious, most often because it's too old (most often this applies to versions…
