Perf: Add cmp-tune insane profile, update Proxmox LXC privileged container docs, and update benchmarks to 28.8 tok/s with PCIe Gen2 and unlocked 610.43.03 driver

scripts/start-server.sh

@@ -24,7 +24,7 @@ exec /opt/llama.cpp/build-nccl/bin/llama-server \
   --split-mode tensor \
   --flash-attn on \
   --batch-size 1024 \
-  --ubatch-size 256 \
+  --ubatch-size 512 \
   --jinja \
   --threads 12 \
   --cache-type-k q4_0 \