slv-performance-boost

# SLV CPU Performance Boost Skill Keeps Solana validator / RPC nodes running at peak CPU frequency at all times. Runs alongside SMT disable and IRQ tuning as part of the `slv v init` / `slv r init` tuning phase. ## What it applies | # | Item | Effect | Reboot | |---|------|--------|--------| | 1 | `apt-get update && apt-get upgrade -y` | Refresh OS packages and userland | No | | 2 | Install HWE kernel (`linux-image-generic-hwe-24.04`) | Enables `amd_pstate` 6.14+ on AMD | **Yes** (AMD only when kernel < 6.14) | | 3 | GRUB `amd_pstate=active processor.max_cstate=0 cpufreq.default_governor=performance` | Initializes amd_pstate driver in active mode at boot | **Yes** (AMD only, first apply) | | 4 | `modprobe amd_pstate` | Try to load the driver at runtime | No | | 5 | `governor=performance` | Lock frequency at maximum | No | | 6 | `EPP=performance` | Push the energy/performance preference toward performance | No | | 7 | `boost=enabled` / Intel `no_turbo=0` | Enable Turbo Boost | No | | 8 | `cpuidle state*/disable=1` | Disable C-states to avoid latency spikes | No | | 9 | `scaling_max_freq=cpuinfo_max_freq` | Align scaling ceiling with the hardware ceiling | No | | 10 | `slv-cpu-boost.service` (oneshot) | Re-applies items 5-9 on every boot | No | ## Related artifacts - `ansible/cmn/boost_performance.yml` - Idempotency marker: `/var/lib/slv/.boost_applied` - Persistence script: `/usr/local/bin/slv-cpu-boost.sh` - systemd unit: `/etc/systemd/system/slv-cpu-boost.service` ## O...