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Postgres WAL Files and Sequence Numbers
Go inside the WAL file with this in-depth look at WAL file Log Sequence Number (LSN), WAL segment positions, WAL file names, and pg_switch_wal.
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The latest blog posts to take off on Hacker News. 2,560 posts.
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Real-time Ubuntu is now generally available
Real-time Ubuntu brings end-to-end security and reliability to the time-bound workloads of modern enterprises. With support for real-time compute, Canonical furthers its commitment to providing a best-in-class experience for open-source software consumption. 14 February 2023, London: Canonical today announced the…
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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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My Fear of Commitment to the First CPU Core
On this Valentine's Day Weekend I share the heartbreak that caused my fear of commitment to the 1st CPU Core of any socket (not just core 0).
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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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A Heisenbug lurking in async Python
Textual is a TUI framework for Python, inspired by modern web development.
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Gentoo Linux 2022 Retrospective
News and information from Gentoo Linux
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Manticore 6.0.0 – a faster alternative to Elasticsearch in C++
Today, the Manticore team is thrilled to announce the release of Manticore Search 6.
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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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Carving the scheduler out of our orchestrator
A deep dive into container scheduling and Flyd, our new orchestrator.
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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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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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Setting the TZ environment variable avoids thousands of system calls (2017)
In this article, you can find how setting the TZ environment variable can prevent thousands of system calls.
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What happens when you open a terminal and enter `ls’
This article explores how terminal emulators function, decoding the process of sending commands to the shell for execution. Unveil the mystery behind what happens when you open a terminal and enter Is.
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Freenet build 1495: new user experience and performance
Hyphanet is a peer-to-peer platform for censorship-resistant communication and publishing.
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Using eBPF and predefined inspections to minimize “observability tax”
Learn how Coroot uses eBPF and predefined inspections to achieve fast, code-free monitoring with minimal observability overhead.
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Nix on the Steam Deck
When I first started using Linux in 2006, I remember dreaming of a Linux Console. It wasn't so far fetched, the PlayStation 3 had just been released with OtherOS support which allowed users to install Linux (or BSD). Still, it seemed that a Linux-first console seemed like it would only ever be a dream.
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Linux Kernel Ksmbd Use-After-Free Remote Code Execution Vulnerability
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Linux Kernel. Authentication is not required to exploit this vulnerability, but only systems with ksmbd enabled are vulnerable.
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Netflix: 30% bitrate saving using Film Grain Synthesis
Searchable archive of articles, posts and press on video denoising, per-shot encoding, AV1 film grain synthesis, MXL and broadcast AI.
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Fast memcpy, a system design
When I worked at Google, fleet-wide profiling revealed that 25-35% of all CPU time was spent just moving bytes around: memcpy, strcmp, copying between user and kernel buffers in network and disk I/…
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Why doesn’t Windows use 64-bit virtual address space below 0x00000000`7ffe0000?
It does use it, although it doesn't look like it.
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Userspace isn't slow, some kernel interfaces are
Discover how recent improvements to wireguard-go boost Tailscale client performance on Linux. Learn about key changes, testing methods, and results showing enhanced throughput and efficiency.
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Apple GPU drivers now in Asahi Linux
Porting Linux to Apple Silicon
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McDonalds Event Driven Architecture
We explore our journey of developing a unified platform enabling real-time, event-driven architectures.
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FreeBSD 12.4
The FreeBSD Release Engineering Team is pleased to announce the availability of FreeBSD 12.4-RELEASE. This is the fifth release of the stable/12 branch.