README

A powerful toolkit for monitoring and optimizing Symfony applications, offering real-time performance metrics, N+1 query detection, cognitive complexity analysis, automated reporting, a secure web dashboard, and seamless CI/CD integration.

Features

• 🚀 Real-time Performance Metrics: Monitor request response time, database queries, memory usage, and CLI command performance.
• 🔍 N+1 Query Detection: Identify and resolve N+1 query issues with detailed analysis.
• 🧠 Cognitive Complexity Analysis: Detect complex code structures (threshold > 10) to improve maintainability.
• 📊 Automated Reporting: Generate HTML, JSON, or SVG badge reports for CI/CD pipelines.
• 📈 Secure Web Dashboard: Visualize performance trends and metrics at /_performance.
• 🔔 Performance Alerts: Configurable thresholds for response time, memory usage, query count, and complexity.
• 💾 Flexible Storage: Store data using Doctrine ORM (DatabaseStorage) or JSON files (FileStorage) with retention policies.
• 🌐 Internationalization: Supports English and French translations.
• 🛠 Extensibility: Add custom analyzers, collectors, and event listeners.
• ✅ Standards Compliance: Enforced with PHPStan (max level), PHPUnit (100% coverage), ECS, and Rector.
• ⚡ Performance Optimizations: Request sampling, degraded mode, and circuit breaker for external services.

Installation

Install the bundle via Composer:

composer require 2a/symfony-performance-analyzer

Enable the bundle in config/bundles.php:

return [
    // ...
    AA\PerformanceAnalyzer\PerformanceAnalyzerBundle::class => ['all' => true],
];

Generate and apply database migrations (for database storage):

php bin/console doctrine:migrations:diff
php bin/console doctrine:migrations:migrate

Install assets for the web dashboard:

php bin/console assets:install --symlink

Configuration

Create a configuration file at config/packages/symfony_performance_analyzer.yaml:

symfony_performance_analyzer:
    enabled: true
    storage:
        type: database  # or 'file'
        file_path: '%kernel.project_dir%/var/performance'
        retention:
            days: 30  # Retain data for 30 days
            max_records: 10000  # Maximum number of records
    analyzers:
        memory: true
        n_plus_one: true
        cognitive_complexity: true
    thresholds:
        max_memory_mb: 256  # Maximum memory in MB
        max_response_time_ms: 500  # Maximum response time in ms
        max_db_queries: 50  # Maximum number of database queries
        max_cognitive_complexity: 10  # Maximum cognitive complexity score
    sampling:
        rate: 1.0  # Analyze 100% of requests (0.0 to 1.0)
        degraded_mode: false  # Enable degraded mode under high load
        degraded_threshold_ms: 1000  # Trigger degraded mode above this response time (ms)
    circuit_breaker:
        enabled: false  # Enable circuit breaker for external services
        failure_threshold: 5  # Number of failures before opening circuit
        retry_timeout: 60  # Seconds to wait before retrying
    dashboard:
        enabled: true
        route_prefix: /_performance
        security:
            enable_firewall: false
            allowed_ips: []  # Restrict dashboard access to specific IPs
    profiler:
        enabled: true
        toolbar: true  # Enable Symfony debug toolbar integration
    ci_cd:
        enabled: false
        level: warning  # Report level: error, warning, notice
        output_format: json  # Report format: json, html

For file-based storage, ensure the storage directory is writable:

mkdir -p var/performance
chmod -R 775 var/performance

Usage

CLI Commands

Analyze performance and generate reports:

# Generate an HTML performance report
php bin/console performance:generate-report --format=html --output=report.html

# Generate a JSON report for CI/CD
php bin/console performance:generate-report --format=json --dry-run > ci-report.json

# Generate a CI/CD badge
php bin/console performance:generate-ci-badge --output=badge.svg

# Profile a CLI command
php bin/console performance:profile app:my-command

Example JSON report output:

{
    "logs": [
        {
            "route": "app_home",
            "response_time": 100,
            "memory_usage": 32,
            "query_count": 5
        }
    ],
    "stats": {
        "avg_response_time": 100,
        "avg_memory_usage": 32,
        "max_query_count": 10
    },
    "issues": [
        {
            "type": "high_complexity",
            "message": "Complexity 12 > 10",
            "severity": "high"
        }
    ]
}

Web Dashboard

Access the performance dashboard at /_performance. Secure it by enabling the firewall and restricting IP access:

symfony_performance_analyzer:
    dashboard:
        security:
            enable_firewall: true
            allowed_ips: ['127.0.0.1', '192.168.1.0/24']

Customize the dashboard route in config/routes.yaml:

performance_dashboard:
    path: /_performance
    controller: AA\PerformanceAnalyzer\Controller\DashboardController::index

Debug Toolbar

The bundle integrates with Symfony’s debug toolbar, displaying request time, query count, memory usage, and performance issues. Enable it in the configuration:

symfony_performance_analyzer:
    profiler:
        toolbar: true

Performance Metrics

The bundle collects and analyzes the following metrics:

Custom Analyzers

Create a custom analyzer by implementing AnalyzerInterface:

namespace App\Analyzer;

use AA\PerformanceAnalyzer\Model\AnalysisResult;
use AA\PerformanceAnalyzer\Model\PerformanceResult;
use AA\PerformanceAnalyzer\Service\Analyzer\AnalyzerInterface;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;

class CustomAnalyzer implements AnalyzerInterface
{
    public function analyze(Request $request, Response $response, PerformanceResult $result): AnalysisResult
    {
        $analysisResult = new AnalysisResult();
        if ($response->getStatusCode() >= 500) {
            $analysisResult->addIssue('server_error', [
                'message' => 'Server error detected',
                'status_code' => $response->getStatusCode(),
                'severity' => 'high'
            ]);
        }
        return $analysisResult;
    }
}

Register the analyzer in config/services.yaml:

App\Analyzer\CustomAnalyzer:
    tags: ['performance.analyzer']

Custom Collectors

Create a custom collector by implementing CollectorInterface:

namespace App\Collector;

use AA\PerformanceAnalyzer\Service\Collector\CollectorInterface;

class CustomCollector implements CollectorInterface
{
    private array $data = [];

    public function start(string $identifier): void
    {
        $this->data[$identifier] = ['start_time' => microtime(true)];
    }

    public function collect(string $identifier): array
    {
        return [
            'custom_duration' => microtime(true) - $this->data[$identifier]['start_time']
        ];
    }
}

Register the collector:

App\Collector\CustomCollector:
    tags: ['performance.collector']

Performance Considerations

• Request Sampling: Set sampling.rate to a value less than 1.0 (e.g., 0.1 for 10% of requests) in production to reduce overhead.
• Degraded Mode: Enable sampling.degraded_mode to skip non-essential collectors when response time exceeds degraded_threshold_ms.
• Circuit Breaker: Activate circuit_breaker.enabled to protect against external service failures, with configurable failure thresholds and retry timeouts.
• Data Retention: Configure storage.retention to limit database or file storage growth, specifying retention days and maximum records.
• Overhead: Performance tests ensure tracking overhead is below 5ms per request.

Testing

Run the test suite:

vendor/bin/phpunit

Perform static analysis and linting:

vendor/bin/phpstan analyze
vendor/bin/ecs check
vendor/bin/rector process --dry-run

The bundle includes:

• Unit Tests: Cover all services and components (100% coverage).
• Integration Tests: Validate end-to-end workflows with database storage.
• Performance Tests: Measure tracking overhead.
• Edge Case Tests: Handle database failures and high-load scenarios.

Uninstallation

Remove the bundle:

composer remove 2a/symfony-performance-analyzer

Drop database tables (if using database storage):

php bin/console doctrine:query:sql "DROP TABLE performance_log, performance_stat"

Remove configuration files and assets:

rm config/packages/symfony_performance_analyzer.yaml
rm -rf var/performance

Contributing

1. Fork the repository.
2. Create a feature branch: git checkout -b feature/my-feature
3. Commit changes: git commit -am 'Add my feature'
4. Push to the branch: git push origin feature/my-feature
5. Open a Pull Request.

Ensure all tests pass and adhere to coding standards (ECS, Rector, PHPStan).

License

This bundle is licensed under the MIT License. See the LICENSE file for details.