Performance

Topology tuning is useful when measurement shows scheduler movement, remote memory, translation pressure, or noisy neighbor contention. It can reduce flexibility and worsen performance when copied blindly. Establish host

Performance work begins with a workload statement and synchronized host/guest evidence. Change one constraint at a time and preserve a rollback definition. Baseline capture Record the experiment Capture workload version,

Start with paravirtualized devices and a storage safe cache policy. Tune queues and I/O threads only after separating guest demand from host and backend limits. Inspect the path Design variables virtio blk is simple and