v1.1.1 : Per-Core CPU, Grouped HTML Report, Load Tester

What's New

• Per-Core CPU Monitoring
• Grouped HTML Report
• Timeline View
• paginated events
• Every event gets a stable #ID that never changes regardless of sorting or filtering.
• New examples

v1.0.0 : HTML Reports, Async Threshold & CLI Overhaul

LoopSentry v1.0.0

The first major release: LoopSentry is now a complete asyncio performance analysis toolkit.

What's New

Standalone HTML Reports

• loopsentry analyze -d logs/ --html generates a zero-dependency, self-contained HTML report

• Dark premium UI with stat cards, event timeline, sortable/filterable table

• Expandable detail rows with smart stack traces, captured variables, CPU/memory/GC metrics

• ▶ View Sample Report

CSV Export

• loopsentry analyze -d logs/ --csv exports all event data for external analysis
• Includes CPU%, memory, GC generations, thread count, stack traces, and arguments

Separate Async Threshold

• New async_threshold parameter — set independent sensitivity for slow async task detection
• Blocking threshold and async threshold are now fully decoupled

Async Task Traceback & Arguments

• Stack traces now captured at task creation time (before frames are destroyed)
• Function arguments captured for async bottleneck events
• Exception info (type, message, full traceback) recorded if a slow task fails

GC Stats

• Garbage collector generation counts (Gen0, Gen1, Gen2) captured per event

Improved CLI

• Removed clean command to prevent accidental log deletion
• Added --html, --csv, --sort, -o flags
• TUI now shows Type, CPU%, Memory columns
• 5 sort modes: time, duration, cpu, memory, type

Example App

• Complete FastAPI demo app with realistic blocking patterns (sync DB, CPU hashing, sync HTTP, blocking sleep)
• Load test script that exercises every endpoint

Breaking Changes

• loopsentry clean command has been removed

Installation

uv add loopsentry

OR

pip install loopsentry