Ubuntu VM Baseline & Tuning
The common baseline every VM gets: swap, the I/O scheduler, periodic TRIM, TCP congestion control, and kernel housekeeping.
Why a baseline at all
Every VM in the lab gets the same small set of OS-level adjustments before it does any real work....
What's in the baseline
The recurring adjustments, and the reasoning for each: Swap — present and small on the general V...
Lessons on the baseline
Tune to the role, not dogmatically. Swap off for k8s nodes, on (small) elsewhere. BBR where it f...