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MirageOS 4.0 – Self-managed internet infrastructure with unikernels
Read the post on "Announcing MirageOS 4.0.0" from our blog.
Topics /
Systems & Performance
The most popular blog posts about systems & performance on Hacker News. 2,560 posts.
1412
When “idle” isn't idle: how a Linux kernel optimization became a QUIC bug
We investigated a bug where CUBIC's congestion window became pinned at its minimum floor, causing a performance to plummet. The fix involved correctly measuring idle periods to distinguish RTT wait times from actual application idleness.
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Bbtree: Fastest Ordered Map
How bbtree, a drop-in replacement for std's BTreeMap, cuts cache misses, instructions and cache coherence traffic, and how it is kept correct.
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Building a Large-Scale Distributed Storage System Based on Raft
Guest post by Edward Huang, Co-founder & CTO of PingCAP In recent years, building a large-scale distributed storage system has become a hot topic. Distributed consensus algorithms like Paxos and Raft…
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Asm.js AOT compilation and startup performance
With the recent announcement of a commercial game shipping using Emscripten and asm.js , I thought it’d be a good time to explain how asm.js is executed in Firefox and some of the load-time optimizations we’ve made since the initial landing of OdinMonkey in March. (OdinMonkey is an optimization module inside Mozilla’s…
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A FOSS proposal for a new type of OS for a new type of computer (2021)
A possible next evolutionary step for computers is persistent memory: large capacity non-volatile main memory. With a few terabytes of nonvolatile RAM, who needs an SSD any more? I will sketch out a proposal for how to build an versatile, general-purpose OS for a computer that doesn't need or use filesystems or files…
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Linux 3.15 Can Resume From Suspend Faster
Access technologies from partnerships with the community and leaders. Everything open source at Intel. We have a lot to share and a lot to learn.
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Porting Doom to the Fastly edge serverless platform
id Software’s DOOM has become one of the most-ported games in history. It felt like a perfect project to port to Compute, built on our serverless compute environment, to experiment with different applications of the product.
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FreeBSD 13.4-Release
The FreeBSD Release Engineering Team is pleased to announce the availability of FreeBSD 13.4-RELEASE. This is the fifth release of the stable/13 branch.
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Breaking the WAL
I did this from a lawn chair on the Sunshine Coast.
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Asm.js performance improvements in the latest version of Firefox
The latest version of Firefox which launched last week includes a major update to the user interface as well as to features like Sync. Another area in which this release ...
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Linux TCP/IP Tuning
Monitor and optimize your website's user experience with the real-time performance analytics from Akamai mPulse. Identify and fix CWV performance issues for search engine indexing and improve the mobile user experience.
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Clive OS: Go applications that can run without an operating system (2016)
Removing (most of) the software stack from the cloud Clive is an operating system designed to work in distributed and cloud computing environments. It’s main design guidelines are: Ther…
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However improbable: The story of a processor bug
Processor problems have been in the news lately, due to the Meltdown and Spectre vulnerabilities. But generally, engineers writing software assume that computer hardware operates in a reliable, well-understood fashion, and that any problems lie on the software side of the software-hardware divide.
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How C array sizes become part of the binary interface of a library
We explain how C array sizes become part of the binary interface of a library and examine ways to avoid ABI compatibility issues.
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CVE-2026-3888: Important Snap Flaw Enables Local Privilege Escalation to Root
The Qualys Threat Research Unit has identified a Local Privilege Escalation (LPE) vulnerability affecting default installations of Ubuntu Desktop version 24.04 and later. This flaw (CVE-2026-3888)…
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OpenSSH Pre-Auth Double Free – Writeup and Proof-of-Concept
Understanding the OpenSSH CVE-2023-25136 high vulnerability. Read our analysis with Proof-of-Concept, learn what's vulnerable, and discover remediations.
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AVIF for Next-Generation Image Coding
By Aditya Mavlankar, Jan de Cock, Cyril Concolato, Kyle Swanson, Anush Moorthy and Anne Aaron
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ZFS from a MySQL perspective
As the purpose of a database system is to store data, there is close relationship with the filesystem. Yves Trudeau reconsiders the use of ZFS with MySQL.
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Using time travel to remotely debug faulty DRAM
The story of debugging a mysterious Julia segfault.
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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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Geosharded Recommendations with Hilbert Curve at Tinder
We’re on a mission to keep the magic of human connection alive. Learn more about life at Tinder and the many ways we're igniting our impact—for our employees and the millions of people seeking connection on our app.