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Intel announces the Aurora supercomputer has broken the exascale barrier
At ISC 2024, Intel announces Aurora is the fastest AI supercomputer, has broken the exascale barrier, and details the importance of an open ecosystem in HPC and AI.
Topics /
Systems & Performance
The most popular blog posts about systems & performance on Hacker News. 6,942 posts.
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M1 Icestorm cores can still perform well
What are the penalties in real-world use for running your code on Icestorm cores, using around 10% of the power used by Firestorms?
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Nobody ever got fired for using a struct
Rust struct serialization problem caused by many nullable SQL columns.
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cp: -r or -R?
A question like this recently came up again. I once tried to find an answer, but only posted it in some "forum" a decade ago, and I think it's worth saving this little bit of trivia from digital nirvana.
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Reflections on 30 years of HPC programming
This summary of Brad’s HIPS 2025 keynote looks at how HPC programming has (and has not) changed over the past 30 years
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Gentoo Linux 2022 Retrospective
News and information from Gentoo Linux
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The Sad State of Debug Performance in C++
By now it should be (hopefully) widely known that the term “zero-cost abstractions” is a misnomer. Although, to be clear, it's more of an unfortunate name.
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Why use OpenBSD?
Last week-end, I was invited to the UNIX Social Camp in Dijon, France to talk about the reasons I still use OpenBSD these days and why should others do so; or at least, have a look at OpenBSD . This post is an English transcription of the original French slides that are available here .
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Removing characters from strings faster with AVX-512
In software, it is a common problem to want to remove specific characters from a string. To make the problem precise, let us consider the removal of all ASCII control characters and spaces. In practice, it means the removal of all byte values smaller or equal than 32. I covered a related problem before, the … Continue…
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Fast Servers
There's a network-server programming pattern which is so popular that it's the canonical approach towards writing network servers:
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Solver Performance: 1989 vs. 2024
We estimate the magnitude of speed improvement for optimization solvers and computer hardware in the 35 years from 1989 to 2024.
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How CircleCI Processes 4.5M Builds per Month
Discover the tech stack used by CircleCI. Explore 34 tools across 4 categories.
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Let's Build a Modern Hadoop
Not just another Hadoop rant — I promise
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Run a macOS VM on Apple Silicon from a double-click with Vimy
Making it quicker and simpler to run a macOS VM: with Vimy all you need do is double-click its bundle, and the VM runs using its previous settings.
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A look at VDO, the new Linux compression layer
Use Red Hat Enterprise Linux 7.5's VDO for storage optimization - save space, boost performance
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The Error Model in Midori
Joe Duffy's Blog | Adventures in the high-tech underbelly
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Invoke Win32 applications with Bash on Windows
Learn about the considerations and interop commands available when working across Windows and Linux file systems with WSL.
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How we made data aggregation on PostgreSQL better and faster
They’re so fast we can’t catch up! Check out our benchmarks with two datasets to learn how we used continuous aggregates to make queries up to 44,000x faster.
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A buffer overflow in the XNU kernel
XNU kernel buffer overflow, introduced in macOS 14.0 and fixed in macOS 14.5.
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FreeBSD 14.5-Release
The FreeBSD Release Engineering Team is pleased to announce the availability of FreeBSD 14.5-RELEASE. This is the sixth release of the stable/14 branch.
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Throughput vs. Latency and Lock-Free vs. Wait-Free
On the previous post we showed an excellent presentation by Cliff Click, and one of the things he mentions is that there is performance for ...
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Time on Unix
An article covering everything you need to know about time on Unix. Time, a word that is entangled in everything in our lives, something we're intimately familiar with. Keeping track of it is important for many activities we do.
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150 MB Minimal FreeBSD Installation
Sometimes an article starts with a simple question or a single message on one of the available social platforms. This is the case today with this article where @ooberober asked: How small can the r…