perf-tunelisted

# Performance Tuning and I/O Benchmark Skill Measures write and read throughput across native Linux ext4 partitions and Windows 9P mounts (`/mnt/c/`, `/mnt/d/`). ## Trigger Scenarios - Investigating slow build times or package installation bottlenecks - Comparing I/O latency between native ext4 (`${HOME}/`) and Windows host mounts - Verifying storage performance before running intensive data or AI workflows ## Invocation ```bash ${CLAUDE_PROJECT_DIR}/scripts/perf_tune.sh [flags] ``` ## Command Options | Option | Description | | :--- | :--- | | *(none)* | Executes standard 100MB read and write benchmark | | `--quick` | Runs faster 20MB benchmark sample | | `--json` | Emits structured JSON results for automated profiling | ## Safety Classification - **Tier 2 (Controlled System Operation)**: Non-destructive benchmark operating in workspace and temp directories.