⚡️ Lock-Free Ring Buffers & NLA Deserialization

Update KB5129235 refactors the session handshake stack in the termdd.sys kernel driver. Instead of contending for global spinlocks during simultaneous Network Level Authentication (NLA) spikes, the kernel switches to lock-free ring buffers.

This architectural shift lowered kernel CPU consumption to 0.8% and cut TLS negotiation latency down to 14 ms. Corporate server farms can now handle parallel logons for over 250 active sessions without thread starvation.

📊 Hypervisor Kernel Telemetry

: 250 users / min

: 0.8% (was 100% frozen)

: 14 ms (-94%)

: Critical OOB KB5129235

🛠 Sysadmin Incident Response Memo