flyerhzm/bullet

Features

• Query Performance Monitors - Analyzes database execution to identify N+1 query patterns and suggest eager loading strategies to optimize efficiency.
• ORM Performance Monitors - Provides a monitoring utility that identifies inefficient database access patterns and missing counter caches in Active Record.
• Rails Query Profilers - Detects N+1 queries and unused eager loading within Ruby on Rails applications.
• Counter Cache Detectors - Identifies repeated count queries on associations to suggest adding counter caches for faster data retrieval.
• Database Optimization Tools - Flags redundant database requests and suggests eager loading strategies to improve response times.
• Eager Loading - Detects unused database associations that are loaded but never used to lower memory consumption and query overhead.
• Unused Eager Loading Detection - Identifies records that are fetched via eager loading but never accessed to reduce unnecessary memory usage and query overhead.
• Event Interception - Intercepts database execution events to track query frequency and association loading patterns during a request.
• Query Optimizations - Identifies and fixes N+1 queries and missing counter caches to improve application response times and reduce database load.
• Post-Execution Analysis Loops - Compares the list of loaded associations against the set of actually accessed records after the response is sent.
• Application Performance Monitoring - Tracks inefficient database access patterns in web requests and background jobs to prevent performance regressions.
• Performance Diagnostic Tools - Provides a diagnostic utility that injects alerts into the browser or logs to highlight database bottlenecks during development.
• Request-Scoped State - Stores a registry of executed queries and accessed associations in a temporary store that clears after every single request.
• Development Workflow - Provides real-time alerts in browser consoles or logs to identify and resolve database inefficiencies during development.
• Query Pattern Noise Filters - Suppresses alerts for specific queries or paths using stack trace filters to focus on relevant performance issues.
• Request-Response Middleware - Appends performance warnings directly to the HTML body or HTTP headers before the final response reaches the client.
• Extensibility Patterns - Uses a pluggable class system allowing users to define new logic for identifying specific database inefficiency patterns.
• Error Stack Filtering - Analyzes the Ruby call stack for each query to determine if it matches a user-defined ignore list.
• Database Query Profiling - Monitors database access patterns and identifies inefficiencies within asynchronous processing and background jobs.
• Notification Noise Reduction - Excludes known or intentional query patterns from detection using a safe list to reduce notification noise.
• Monitoring Pausing Controls - Disables detection for specific code blocks or actions to avoid noise in certain execution paths.
• Notification Injections - Injects notifications into the page body or HTTP headers to alert developers of performance issues during requests.
• Profiling and Benchmarking - Detects N+1 queries and unused eager loading.
• Static Analysis Tools - Detects N+1 queries in Ruby applications.

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