Tag: #linux-kernel

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• Why QUIC Gets Slower on Fast Internet — Receiver-Side CPU and the Kernel QUIC That Hasn't Arrived

  QUIC clearly won on handshake latency and loss recovery — Google's internet-scale measurements show an 8.0% (desktop) drop in search latency and an 18.0% drop in video rebuffer rate as evidence. But once the link gets fa

  2026-07-16 · 20 min read #network#protocol#performance#linux-kernel

• CXL Memory Tiering: How Far Has the Kernel Come — What DAMON Merged, and What the Numbers Didn't Measure

  Even when CXL hardware is plugged into a server, it's the kernel that actually decides which pages are hot and which are cold and moves them. As of July 2026, Linux mainline has received DAMON/DAMOS-based tiering pieces

  2026-07-16 · 19 min read #hardware#cxl#memory#linux-kernel#performance

• GhostLock: a stack use-after-free that hid in Linux rtmutex for 15 years (CVE-2026-43499)

  GhostLock (CVE-2026-43499) is a stack use-after-free in the Linux kernel's real-time mutex code that, per the nebusec.ai IonStack part II writeup, sat in mainline from 2.6.39-rc1 in 2011 until a fix in April 2026 — about

  2026-07-11 · 6 min read #linux-kernel#security#use-after-free#privilege-escalation#rtmutex

• Container & Docker Internals Deep Dive — Namespace, cgroups, OverlayFS, seccomp, Capabilities and Kubernetes (2025)

  "A container is not a lightweight VM." Behind a single docker run there are 7 Linux namespaces, cgroups v2, OverlayFS layers, seccomp filters, and Linux capabilities. From LXC in 2008 to Docker in 2013, OCI standardizati

  2026-04-15 · 12 min read #docker#container#namespace#cgroups#overlayfs

• Rust in 2025: 45.5% Adoption, TIOBE #13, Linux Kernel — Should Your Team Learn Rust?

  Rust organizational adoption hits 45.5% (+17.6% YoY), commercial use grew 68.75%, TIOBE all-time high at 13. Rust is becoming essential in Linux kernel, Android, and cloud infrastructure. Covering learning curve, real-wo

  2026-03-22 · 20 min read #rust#programming#systems#linux-kernel#webassembly