ReadMeFeed / Community knowledge
Real questions. Useful conversations. Find the people who know your stack.
Developer tools · #linux
Learn how Linux XDP (eXpress Data Path) allows high-performance packet filtering by executing eBPF programs at the NIC driver level, bypassing the expensive kernel network stack.
Compare kernel-native OverlayFS with AuFS and UnionFS-FUSE, then validate an overlay mount on your host.
Discover how to safely install Arch User Repository packages: inspect PKGBUILDs, build with makepkg, and verify pacman logs. A step‑by‑step guide with a real example and common pitfalls.
Learn how Podman’s rootless mode lets you run containers without sudo or a daemon, see a concrete NGINX example, and understand the port‑binding limits and verification steps.
Create a systemd drop-in override with LimitNOFILE=65535, reload the manager, and restart the unit to raise the soft and hard RLIMIT_NOFILE for a service process.
Deploy the Datadog Agent on a Linux host to collect system metrics, logs, and traces. Covers prerequisites, installation, configuration, validation, and rollback.
Learn how to shift AV1 video decode from CPU to GPU in Firefox on Linux using VA‑API, with step‑by‑step enablement, verification, and limits.
A diagnostic guide for Linux OOM killer activations: recognize the kernel log signature, run ordered checks, apply targeted fixes, and know when to escalate to core dumps or hardware changes.
Decide whether to turn on ARM64 Pointer Authentication (PAC) for return‑address protection in user‑space Linux binaries. A concise decision guide compares PAC on vs. off, discusses security, performance, compatibility, and shows how to compile, run, and validate a PAC‑enabled program.
archlinux
podman
unix
datadog
firefox
aarch64