ingero-io/ingero

What's New

Seven fixes from RTX 4090 GPT-2 stress test analysis (5-phase, 237K+ events/min).

Highlights

• DB compaction at shutdown — WAL checkpoint + VACUUM when >20% of pages are free. Integration test DB shrank from 57 MB to 2.7 MB (95% reduction)
• Throughput-drop causal chains — new detection for when CUDA op rate drops >40% from peak but per-call latency stays flat. Catches GPU starvation that tail-ratio chains miss
• Aggregate flush starvation fix — high-throughput periods (400K+ events/min) no longer starve the stats flusher. Event-count-based inline flush every 10K events
• Process name persistence — dynamically discovered PIDs now have names in SQLite. explain --per-process shows process names instead of raw PIDs
• Phase 5 block I/O visibility — checkpoint saves trigger fsync for block device tracepoint capture

Test Results

• 224 unit tests
• RTX 4090 GPU integration: 73 PASS, 0 FAIL, 1 SKIP, 6 WARN
• 28/28 ML Eng AI-assisted investigations PASS
• 944 causal chains including new throughput-drop chains

Quick Start

git clone https://github.com/ingero-io/ingero.git
cd ingero && make build
./bin/ingero demo incident    # No GPU needed

For real GPU tracing:

sudo ./bin/ingero trace --duration 30s
./bin/ingero explain --since 30s

Full changelog: see Release Notes