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Proxmox Virtual Environment 9.0 with Debian 13 released
Latest announcements for Proxmox.
Topics /
Systems & Performance
The most popular blog posts about systems & performance on Hacker News. 163 posts.
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Erlang 28 on GRiSP Nano using only 16 MB
A modular embedded ecosystem—bare-metal hardware, software stacks, and a cloud platform for real-time IoT and distributed systems.
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How to scale your model: A systems view of LLMs on TPUs
Training LLMs often feels like alchemy, but understanding and optimizing the performance of your models doesn't have to. This book aims to demystify the science of scaling language models: how TPUs (and GPUs) work and how they communicate with each other, how LLMs run on real hardware, and how to parallelize your…
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Benchmarking Postgres 17 vs. 18
Postgres 18 brings a significant improvement to read performance via async I/O and I/O worker threads. Here we compare its performance to Postgres 17.
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Proxmox Datacenter Manager 1.0 available
Latest announcements for Proxmox.
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Linux Performance Analysis (2015)
You log in to a Linux server with a performance issue: what do you check in the first minute?
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Case Study: ByteDance Uses eBPF to Enhance Networking Performance
Bytedance, a global technology company operating a wide range of content platforms around the world at massive scale, faced significant challenges in ensuring performance and stability across its data centers. With over a million servers running containerized applications, the company required a networking solution…
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The Shepherd 1.0.0 released
Blog posts about GNU Guix.
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Strobelight: A profiling service built on open source technology
We’re sharing details about Strobelight, Meta’s profiling orchestrator. Strobelight combines several technologies, many open source, into a single service that helps engineers at Meta improve effic…
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Life of an inference request (vLLM V1): How LLMs are served efficiently at scale
vLLM is an open-source inference engine that serves large language models. We deploy vLLM across GPUs and load open weight models like Llama 4 into it. vLLM sits at the intersection of AI and systems programming, so we thought that diving into its details might interest our readers.
102
The Green Tea Garbage Collector
Go 1.25 includes a new experimental garbage collector, Green Tea.
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A kernel stack use-after-free: Exploiting Nvidia's GPU Linux drivers
This article details two bugs discovered in the NVIDIA Linux Open GPU Kernel Modules and demonstrates how they can be exploited. The bugs can be triggered by an attacker controlling a local unprivileged process. Their security implications were confirmed via a proof of concept that achieves kernel read and write…
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Lessons from the PG&E outage
At Waymo, our mission is to be the world’s most trusted driver. We know trust is built through consistent behavior over time—earned through every mile we drive and every interaction we have with the community. This past Saturday, as a widespread PG&E outage cut power to nearly one-third of San Francisco, our service…
105
Rustls Server-Side Performance
In past years, the Rustls project has been happy to receive substantial investments from the ISRG. One of our goals has been to improve performance without compromising on safety. We last posted about our performance improvements in October of 2024, and we're back to talk about another round of improvements. What is…
106
Erlang ARM32 JIT is born
A modular embedded ecosystem—bare-metal hardware, software stacks, and a cloud platform for real-time IoT and distributed systems.
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Build durable workflows with Postgres
In this blog post, we’ll dive deep into why we chose to build DBOS durable workflow execution on the PostgreSQL DBMS.
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How Netflix Accurately Attributes eBPF Flow Logs
By: Cheng Xie, Bryan Shultz, and Christine Xu
110
HTAP is Dead
Databricks offers a unified platform for data, analytics and AI. Build better AI with a data-centric approach. Simplify ETL, data warehousing, governance and AI on the Data + AI Platform.
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Building the largest known Kubernetes cluster
Learn about the architectural innovations we used to build a 130,000-node Kubernetes cluster, and the trends driving demand for these environments.
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Speeding up PostgreSQL dump/restore snapshots
How targeted improvements helped us speed up bulk data loads and complex schemas.
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Go is portable, until it isn't
An exploration of Go's portability limits when integrating with system-specific C libraries like libsystemd and dealing with glibc vs. musl systems.
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SourceFS: A 2h+ Android build becomes a 15m task with a virtual filesystem
SourceFS - a high-performance virtual filesystem that builds Android 9× faster, cuts compute costs by 14×, and reduces disk usage by 83× — unlocking a new level of developer productivity.
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How to escape the Linux networking stack
Many products at Cloudflare aren’t possible without pushing the limits of network hardware and software to deliver improved performance, increased efficiency, or novel capabilities such as soft-unicast, our method for sharing IP subnets across data centers. Happily, most people do not need to know the intricacies of…
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NT OS Kernel Information Disclosure Vulnerability
Bidding farewell to one of the last kernel address leaks, CVE-2025-53136. Even patches can open new doors for exploitation.
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Cutting down Rust compile times from 30 to 2 minutes with one thousand crates
How we split Feldera into a thousand crates to use every core rustc can get, cutting compile times from 30 minutes to 2.
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The case of the UI thread that hung in a kernel call
I did tell you not to do that.
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Comparison of C/POSIX standard library implementations for Linux
The table below and notes which follow are a comparison of some of the different standard library implementations available for Linux, with a particular focus on the balance between feature-richness and bloat. I have tried to be fair and objective, but as I am the author of musl , that may have influenced my choice of…