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Investigating Linux phantom disk reads
An investigation of weird hardware utilization highlighting some interesting Linux kernel behaviors.
Topics /
Systems & Performance
The most popular blog posts about systems & performance on Hacker News. 164 posts.
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Replacing WebRTC: real-time latency with WebTransport and WebCodecs
Media over QUIC: The long path to use something else for real-time media.
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Keeping Figma Fast: perf-testing the WASM editor
When a laptop crashed in an empty office, we knew it was time to overhaul our performance testing framework.
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Why SQLite is so great for the edge
Everyone already knows that SQLite is great. This article makes the praise much more specific though — it explains why we, the developers of libSQL, think that SQLite is a great choice for bringing your data to the edge.
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First in-the-wild UEFI bootkit bypassing UEFI Secure Boot
ESET researchers are the first to publish an analysis of BlackLotus, the first in-the-wild UEFI bootkit capable of bypassing UEFI Secure Boot.
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Modernizing C arrays for greater memory safety: a case study in the Linux kernel
How to modernize C arrays for greater memory safety: a case-study in refactoring the Linux kernel and a look to the future Kees Cook C i...
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Turmoil, a framework for developing and testing distributed systems
Tokio is a runtime for writing reliable asynchronous applications with Rust. It provides async I/O, networking, scheduling, timers, and more.
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Carving the scheduler out of our orchestrator
A deep dive into container scheduling and Flyd, our new orchestrator.
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How does Linux start a process
Stack smashing: How Linux creates the stack and runs a program. Then mess with it.
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Google opens Falcon, a reliable low-latency hardware transport, to the ecosystem
Falcon enables an order-of-magnitude improvement over software-only transports. Today at the OCP Global Summit, Google is excited to open Falcon to the ecosystem through the Open Compute Project.
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FreeBSD 14.0-Release
The FreeBSD Release Engineering Team is pleased to announce the availability of FreeBSD 14.0-RELEASE. This is the first release from the stable/14 branch.
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Remote code execution in OpenSSH’s forwarded SSH-agent
CVE-2023-38408 is a remote code execution flaw in OpenSSH’s forwarded ssh-agent. Get full exploit details, impact analysis, and Qualys detection guidance.
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Rethinking Window Management
Window management is one of those areas I'm fascinated with because even after 50 years, nobody's fully cracked it yet. Ever since the dawn of time we've relied on the window metaphor as the primary way of multitasking on the desktop. In this metaphor, each app can spawn one or more rectangular windows, which are...
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Leveraging Rust and the GPU to render user interfaces at 120 FPS
From the Zed Blog: A deep-dive into the graphical underpinnings of GPUI, the hardware-accelerated framework that powers Zed's user interface.
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Virtual Machine as a core Android Primitive
News and insights on the Android platform, developer tools, and events.
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Increasing QUIC and UDP Throughput over Tailscale
Recent optimizations in Tailscale improve UDP throughput, boosting performance for QUIC, HTTP/3, and other UDP-based applications on Linux.
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Retries – An interactive study of request retry methods
An interactive guide to retrying requests: why naive retries overload a failing service, and how exponential backoff and jitter fix it.
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The Great CPU Stagnation
A blog by and for database architects.
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Git archive checksums may change
We are reverting this change for now. More details to follow. The default compression for Git archives has recently changed. As result, archives downloaded from GitHub may have different checksums…
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Fast Llama 2 on CPUs with Sparse Fine-Tuning and DeepSparse
From live events to hands-on product demos to deep technical research, see what we're doing with AI at Red Hat.
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Keep the monolith, but split the workloads
Everybody loves a monolith, but you can hit issues as you scale. Learn how splitting workloads can improve your monolithic architecture's performance and scalability, and understand the trade-offs between monolithic systems and microservices.
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YJIT is the most memory-efficient Ruby JIT
This year, the YJIT team and I have gotten a paper accepted at MPLR 2023 (Managed Programming Languages and Runtimes), which is now freely available through ACM open access. The paper, titled “Evaluating YJIT’s Performance in a Production Context: A Pragmatic Approach”, goes into details of the strategy taken to…
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Server-side sandboxing: Containers and seccomp
An overview of containers and seccomp as sandboxing primitives
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Ubuntu 24.04 LTS will enable frame pointers by default
Today Canonical is raising the bar for performance and observability by enabling frame pointers by default in Ubuntu 24.04 LTS. […]
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The Mysterious 50 Ohm Impedance: Where It Came from and Why We Use It (2021)
50 Ohm impedance became the standard impedance used in RF transmission lines long ago, but it is still useful today and is a standard reference impedance used in test equipment.
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ACM Software System Award Given to seL4 Microkernel
William Gropp, University of Illinois; Pavan Balaji, Meta; Rajeev Thakur, Yanfei Guo, Kenneth Raffenetti, and Hui Zhou (all of Argonne National Laboratory), receive the ACM Software System Award for MPICH, which has powered 30 years of progress in computational science and engineering by providing scalable, robust…
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