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Simple Precision Time Protocol at Meta
While deploying Precision Time Protocol (PTP) at Meta, we’ve developed a simplified version of the protocol (Simple Precision Time Protocol – SPTP), that can offer the same level of clock syn…
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Systems & Performance
The most popular blog posts about systems & performance on Hacker News. 2,560 posts.
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Building a Linux Container Runtime from Scratch
We're open sourcing our programmatic low-level container runtime, Styrolite
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Reddit: 2012 State of the Servers
Get the latest product news, company announcements, and user insights from the official Reddit blog.
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Does showing seconds in the system tray actually use more power?
Welcome to LTT Labs - your go-to destination for all things tech. Explore comprehensive test results, insightful commentary, and the latest analysis in hardware.
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Memory management in C programs (2014)
One large difference between C and most other programming languages is that in C, you have to handle memory yourself rather than having a garbage collector do it for you. Ensuring that memory is allocated at the correct moment is not very difficult (and something that needs to be done manually in pretty much every…
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Why are there both TMP and TEMP environment variables? (2015)
Parallel evolution.
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Reversing Bits in C
The Corner is Square's technical blog covering software engineering, APIs, data, open source and more.
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ClickHouse cost-efficiency in action: analyzing 500B rows on an Intel NUC
See how ClickHouse delivers faster query performance on 500 billion rows of data compared to ScyllaDB, leveraging an Intel NUC mini PC, advanced compression, and materialized views.
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Git’s database internals I: packed object store
This blog series will examine Git’s internals to help make your engineering system more efficient. Part I discusses how Git stores its data in packfiles using custom compression techniques.
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Introducing Riptide: WebKit's Retreating Wavefront Concurrent Garbage Collector
The new Riptide garbage collector in WebKit leads to a five-fold improvement in latency in the JetStream/splay-latency test.
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A general overview of what happens before main() (2019)
8 April 2019 by Phillip Johnston • Last updated 22 August 2022For most programmers, a C or C++ program’s life begins at the main function. They are blissfully unaware of the hidden steps that happen between invoking a program and executing main. Depending on the program and the compiler, there are all kinds of…
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Best practices can slow your application down
In order to get the most performant site possible when building the codebase for our public Stack Overflow site, we didn’t always follow best practices.
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Java 21 VirtualThreads vs. Clojure Lazy Seqs
Welcome to the Clojure Deref! This is a weekly link/news roundup for the Clojure ecosystem (feed: RSS ). Thanks to Anton Fonarev for link aggregation.
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Stop Wasting Connections, Use HTTP Keep-Alive
The latest tutorials, best practices, insights and customer stories on the Lob APIs, direct mail, and address verification.
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An Introduction to PipeWire
This blog post is the first part of a series of 3 articles related to the PipeWire project and its usage in embedded Linux systems.
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Triton: DirectX 11 Driver for QEMU
In the prequel, we introduced Neptune, a Direct3D protocol forwarding layer for VirtIO. Neptune allowed us to serialize Direct3D API calls across the hypervisor boundary and this allowed us to run Wine games on a Linux guest with a Linux host faster than with DXVK directly in the guest. Admittedly, the payoff there…
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Making GitLab faster
In GitLab 8.5 we shipped numerous performance improvements. In this article we'll take a look at some of these changes and the process involved in finding and resolving these issues.
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Introducing Amazon EC2 P3 Instances
Discover more about what's new at AWS with Introducing Amazon EC2 P3 Instances
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Raft Is So Fetch: The Raft Consensus Algorithm Explained Through Mean Girls
Understanding the Raft Consensus Algorithm can be tough. In honor of "Mean Girls" day (October 3), we present Raft as explained through the movie "Mean Girls."
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Wayland on OpenBSD
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GPU Video acceleration in the Windows Subsystem for Linux now available
Introduction In DirectX ❤ Linux - DirectX Developer Blog we wrote about DXCore & D3D12 support on WSLg and described OpenGL & OpenCL support by
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What we learned after a year on Kubernetes
It's been one year since we moved GitLab.com to Kubernetes. We unpack the challenges and learnings from this major migration.
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Async message-oriented systems vs. REST for inter-microservice communications
Why was Mats created, what is the point of using message-based async RPC.
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Introducing the B3 JIT compiler
WebKit's FTL JIT now uses a new backend on OS X — the Bare Bones Backend, or B3 for short, replaces LLVM as the low-level optimizer.
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Stack Overflow: How we upgrade a live data center
A few weeks ago we upgraded a lot of the core infrastructure in our New York (okay, it’s really in New Jersey now – but don’t tell anyone) data center. We love being open with everything we do (including infrastructure), and really consider it one of the best job perks we have. So here’s how and why we upgrade a data…
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Linux Kernel Development and Writing a Simple Kernel Module (2018)
This post is the first post in linux kernel series. Writing code to run in the kernel is different from user application. While developing in the kernel, you don’t write code from scratch, you need to implement one or more interfaces and register your implementation within the a kernel subsystem.