move rhailib to herolib

rhailib/benches/simple_rhai_bench/README.md

@@ -0,0 +1,71 @@
+# Minimal Rhailib Benchmark
+
+A simplified, minimal benchmarking tool for rhailib performance testing.
+
+## Overview
+
+This benchmark focuses on simplicity and direct timing measurements:
+- Creates a single task (n=1) using Lua script
+- Measures latency using Redis timestamps
+- Uses existing worker binary
+- ~85 lines of code total
+
+## Usage
+
+### Prerequisites
+- Redis running on `127.0.0.1:6379`
+- Worker binary built: `cd src/worker && cargo build --release`
+
+### Run Benchmark
+```bash
+# From project root
+cargo bench
+```
+
+### Expected Output
+```
+🧹 Cleaning up Redis...
+🚀 Starting worker...
+📝 Creating single task...
+⏱️  Waiting for completion...
+✅ Task completed in 23.45ms
+🧹 Cleaning up...
+```
+
+## Files
+
+- `simple_bench.rs` - Main benchmark binary (85 lines)
+- `batch_task.lua` - Minimal Lua script for task creation (28 lines)
+- `Cargo.toml` - Dependencies and binary configuration
+- `README.md` - This file
+
+## How It Works
+
+1. **Cleanup**: Clear Redis queues and task details
+2. **Start Worker**: Spawn single worker process
+3. **Create Task**: Use Lua script to create one task with timestamp
+4. **Wait & Measure**: Poll task until complete, calculate latency
+5. **Cleanup**: Kill worker and clear Redis
+
+## Latency Calculation
+
+```
+latency_ms = updated_at - created_at
+```
+
+Where:
+- `created_at`: Timestamp when task was created (Lua script)
+- `updated_at`: Timestamp when worker completed task
+
+## Future Iterations
+
+- **Iteration 2**: Small batches (n=5, n=10)
+- **Iteration 3**: Larger batches and script complexity
+- **Iteration 4**: Performance optimizations
+
+## Benefits
+
+- **Easy to Understand**: Single file, linear flow
+- **Direct Timing**: Redis timestamps, no complex stats
+- **Fast to Modify**: No abstractions or frameworks
+- **Reliable**: Simple Redis operations