Tag: performance

Squeeze every MB/s from WireGuard: MTU sizing, GSO/GRO CPU offloading, AllowedIPs routing, PersistentKeepalive tradeoffs, and iperf3 benchmarks included.

Plex defaults to transcoding files your TV could already play. Fix direct play, enable hardware transcoding, kill the relay tax, and know when to quit for Jellyfin.

Learn how to set Docker resource limits for memory, CPU, swap, and PIDs. Practical guide with real-world sizing examples, OOM killer behavior, and cgroups explained.

Your Linux box takes forever to boot? systemd-analyze shows exactly which services drag it down. Read blame, critical-chain, plot, and fix the slow ones.

Master SSH ControlMaster, ControlPath, and ControlPersist. Reuse connections for lightning-fast SSH, SCP, and rsync operations.

Why Linux kills your app with no warning. Understand the OOM killer, read dmesg logs, and shield critical processes with oom_score_adj and swap.

Compare zram (compressed RAM) and traditional swap files. Learn when each works, setup, and real-world performance trade-offs for memory-constrained systems.

Layer caching is your build's BFF. Learn why copying files early kills the cache and how to fix it.

Manage Linux process priority with nice (CPU) and ionice (I/O). Learn priority levels, renice running processes, and avoid tanking server performance.

File descriptors and why that 1024 limit kills your server. How to check, raise, and debug fd exhaustion.

daemon.json controls how the Docker daemon behaves, logging drivers, storage drivers, registry mirrors, and the options worth tuning.

Speed up Ansible playbooks with pipelining, forks, fact caching, and async tasks, stop watching the spinning wheel on every play.