『The Linux Podcast with Fexingo: Open Source Operating Systems, Distros, and Server Stack』のカバーアート

The Linux Podcast with Fexingo: Open Source Operating Systems, Distros, and Server Stack

The Linux Podcast with Fexingo: Open Source Operating Systems, Distros, and Server Stack

著者： Fexingo
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Lucas and Luna examine the Linux ecosystem as it powers everything from cloud servers to embedded devices. They trace the evolution of major distributions — Fedora's upstream-first philosophy, Debian's stability-first governance, and the commercial strategies behind Ubuntu and RHEL — without rehashing release notes. Each episode picks one layer of the stack: the container runtime that changed deployment (Docker, Podman), the systemd debate, or why Wayland still hasn't fully replaced X11 on the desktop. They also cover real-world migrations: a startup moving from CentOS to Rocky Linux, a government agency choosing OpenSUSE Leap for long-term support, and the kernel patching workflow at a FAANG-scale datacenter. Lucas brings the command-line fluency — package managers, filesystem hierarchy, SELinux contexts — while Luna asks the questions that matter to sysadmins and developers: What breaks when you upgrade? How do you audit a distro's supply chain? Can Linux ever win the desktop without OEM deals? No fanboy evangelism, no terminal-porn demos. Listeners come for the technical depth — kernel config options, Wayland protocols, cgroups v2 — but stay for the operational judgment: which distro for a Kubernetes node, which init system for an embedded device. What does it take to run Linux at scale without burning out your ops team? #Linux #OpenSource #Technology #FexingoBusiness #BusinessPodcast #Distro #Kernel #Containerization #Docker #Podman #Systemd #Wayland #RHEL #Ubuntu #Fedora #Debian #Sysadmin #DevOps Keep every episode free: buymeacoffee.com/fexingo© 2026 Fexingo. All rights reserved. 経済学
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  • How Linux Handles Memory Fragmentation on Production Servers

    How Linux Handles Memory Fragmentation on Production Servers
    2026/06/07
    Episode 36 of The Linux Podcast dives into memory fragmentation, a silent performance killer on long-running Linux servers. Lucas explains how the kernel's buddy allocator causes external fragmentation over time, and how newer features like THP compaction, proactive compaction via khugepaged, and the 'compact_memory' sysfs interface help. Luna shares a real-world case where a Redis instance on a 128GB machine saw 40% tail latency spikes due to fragmentation. They discuss practical monitoring with /proc/pagetypeinfo, when to trigger compaction manually, and why some workloads benefit from transparent huge pages while others should disable them. No theory without application: listeners will learn one command to check their server's fragmentation level today. #Linux #MemoryManagement #Fragmentation #Kernel #BuddyAllocator #TransparentHugePages #THP #ProactiveCompaction #khugepaged #Redis #SysAdmin #Performance #ServerOptimization #Technology #FexingoBusiness #BusinessPodcast #OpenSource #Systems Keep every episode free: buymeacoffee.com/fexingo
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    8 分
  • Why Linux Distros Are Adopting Composefs for Container Storage

    Why Linux Distros Are Adopting Composefs for Container Storage
    2026/06/06
    Container images are huge, duplicative, and a security headache. Lucas and Luna dig into Composefs — a new Linux filesystem layer developed by Red Hat's Alexander Larsson — that uses content-addressable storage to deduplicate image data across the entire host. They walk through how it works, why it slashes disk usage by up to 90 percent for common image stacks, and what it means for container runtime performance and image signing. With OCI image sizes ballooning and supply chain attacks on the rise, Composefs offers a kernel-level fix that's landing in Fedora 40 and beyond. This episode covers the technical meat without assuming you're a kernel developer. #Composefs #LinuxContainers #Podman #OCI #RedHat #ContainerStorage #AlexanderLarsson #DeviceMapper #OverlayFS #ImageDeduplication #Fedora40 #LinuxKernel #SupplyChainSecurity #CamelCase #Technology #LinuxPodcast #FexingoBusiness #BusinessPodcast Keep every episode free: buymeacoffee.com/fexingo
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    11 分
  • Why Linux Memory Tiering Is Changing How Servers Use RAM

    Why Linux Memory Tiering Is Changing How Servers Use RAM
    2026/06/06
    Episode 34 dives into Linux memory tiering — a kernel feature that treats fast and slow memory as a single pool with automatic hot-page migration. Lucas explains how the kernel's memory-management subsystem can now move frequently accessed pages to high-bandwidth memory (like Intel Optane or CXL-attached RAM) while relegating cold data to cheaper DRAM tiers. Using concrete examples from Meta's production servers and the Linux 6.8 kernel merge, the hosts discuss how this changes database performance, cloud instance pricing, and the old NUMA-awareness playbook. Luna asks whether this makes manual memory pinning obsolete, and Lucas walks through the trade-offs: latency jitter, kernel overhead, and the ongoing debate about transparent vs. user-hinted migration. No hype — just how the kernel is solving a hardware problem that didn't exist five years ago. #Linux #MemoryTiering #Kernel #NUMA #CXL #IntelOptane #Meta #ProductionServers #RAM #HotPages #MemoryManagement #LinuxKernel68 #DatabasePerformance #CloudComputing #Technology #OpenSource #FexingoBusiness #BusinessPodcast Keep every episode free: buymeacoffee.com/fexingo
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    10 分
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