Performance Optimization

Veltix provides various optimization techniques to ensure your dashboards perform well even with large datasets and complex visualizations.

Overview

Performance optimization in Veltix includes:

Data Optimization: Efficient data handling and caching
Component Optimization: Lazy loading and virtual rendering
Rendering Optimization: Canvas and chart rendering improvements
Network Optimization: API and data source optimization
Memory Management: Garbage collection and memory leaks prevention

Data Optimization

Data Caching

Implement intelligent caching to reduce API calls and improve response times.


// Cache configuration
const cacheConfig = {
  enabled: true,
  ttl: 300000, // 5 minutes
  maxSize: 100, // Maximum cache entries
  strategy: 'lru' // Least recently used
};
 
// Using cached data source
const cachedDataSource = {
  type: 'api',
  url: 'https://api.example.com/sales',
  cache: cacheConfig,
  refreshInterval: 60000
};

Data Pagination

Handle large datasets efficiently with pagination.


// Paginated data source
const paginatedDataSource = {
  type: 'api',
  url: 'https://api.example.com/sales',
  pagination: {
    enabled: true,
    pageSize: 1000,
    pageField: 'page',
    sizeField: 'size',
    totalField: 'total'
  }
};
 
// Virtual scrolling for large lists
const virtualListConfig = {
  itemHeight: 50,
  overscan: 5,
  threshold: 1000
};

Data Aggregation

Pre-aggregate data on the server side to reduce client-side processing.


// Server-side aggregation
const aggregatedDataSource = {
  type: 'api',
  url: 'https://api.example.com/sales/aggregated',
  aggregation: {
    groupBy: ['region', 'product'],
    metrics: ['sum', 'average', 'count'],
    timeRange: 'last_30_days'
  }
};

Component Optimization

Lazy Loading

Load components only when needed to improve initial load time.


import { lazy, Suspense } from 'react';
 
// Lazy load chart components
const BarChart = lazy(() => import('@veltix/charts/bar'));
const LineChart = lazy(() => import('@veltix/charts/line'));
const PieChart = lazy(() => import('@veltix/charts/pie'));
 
function Dashboard() {
  return (
    <Suspense fallback={<div>Loading chart...</div>}>
      <BarChart data={data} />
    </Suspense>
  );
}

Component Memoization

Prevent unnecessary re-renders with React.memo and useMemo.


import { memo, useMemo } from 'react';
 
const OptimizedChart = memo(({ data, config }) => {
  const processedData = useMemo(() => {
    return data.map(item => ({
      ...item,
      value: item.value * 1000
    }));
  }, [data]);
 
  return <BarChart data={processedData} config={config} />;
});

Virtual Rendering

Render only visible components for large dashboards.


import { VirtualCanvas } from '@veltix/ui';
 
function LargeDashboard({ components }) {
  return (
    <VirtualCanvas
      components={components}
      viewportHeight={800}
      itemHeight={200}
      overscan={3}
    />
  );
}

Rendering Optimization

Canvas Optimization

Optimize canvas rendering for smooth interactions.


// Canvas performance settings
const canvasConfig = {
  enableOptimization: true,
  batchUpdates: true,
  debounceResize: 100,
  enableHardwareAcceleration: true
};
 
// Component rendering optimization
const componentConfig = {
  enableLazyRendering: true,
  renderThreshold: 100,
  enableCulling: true
};

Chart Rendering

Optimize chart rendering for better performance.


// ECharts optimization
const chartConfig = {
  animation: false, // Disable animations for better performance
  throttle: 16, // 60fps throttling
  progressive: 1000, // Progressive rendering for large datasets
  progressiveThreshold: 3000
};
 
<BarChart
  data={data}
  config={chartConfig}
  enableOptimization={true}
/>

WebGL Rendering

Use WebGL for complex visualizations when available.


// WebGL configuration
const webglConfig = {
  enabled: true,
  fallback: 'canvas',
  antialias: true,
  preserveDrawingBuffer: false
};

Network Optimization

API Optimization

Optimize API calls and data transfer.


// API request optimization
const apiConfig = {
  compression: true,
  caching: true,
  batchRequests: true,
  requestTimeout: 5000,
  retryAttempts: 3
};
 
// GraphQL optimization
const graphqlConfig = {
  query: `
    query GetSalesData($year: Int!) {
      sales(year: $year) {
        date
        amount
        region
      }
    }
  `,
  variables: { year: 2024 },
  fetchPolicy: 'cache-first'
};

WebSocket Optimization

Optimize real-time data connections.


// WebSocket optimization
const websocketConfig = {
  compression: true,
  heartbeat: 30000,
  reconnectAttempts: 5,
  reconnectInterval: 1000,
  maxReconnectDelay: 30000
};

Memory Management

Garbage Collection

Prevent memory leaks and optimize garbage collection.


// Memory management utilities
import { useMemoryOptimization } from '@veltix/ui';
 
function Dashboard() {
  useMemoryOptimization({
    cleanupInterval: 60000,
    maxMemoryUsage: 100 * 1024 * 1024, // 100MB
    enableGarbageCollection: true
  });
 
  return <DashboardContent />;
}

Event Listener Cleanup

Properly clean up event listeners to prevent memory leaks.


import { useEffect, useRef } from 'react';
 
function ChartComponent({ data }) {
  const chartRef = useRef(null);
 
  useEffect(() => {
    const chart = chartRef.current;
    
    // Setup event listeners
    chart.on('click', handleClick);
    chart.on('hover', handleHover);
 
    // Cleanup function
    return () => {
      chart.off('click', handleClick);
      chart.off('hover', handleHover);
      chart.dispose();
    };
  }, [data]);
 
  return <div ref={chartRef} />;
}

Data Structure Optimization

Use efficient data structures for better performance.


// Use Map for O(1) lookups
const dataMap = new Map();
data.forEach(item => {
  dataMap.set(item.id, item);
});
 
// Use Set for unique values
const uniqueValues = new Set(data.map(item => item.category));
 
// Use TypedArrays for large numeric datasets
const numericData = new Float64Array(data.length);
data.forEach((item, index) => {
  numericData[index] = item.value;
});

Monitoring and Profiling

Performance Monitoring

Monitor dashboard performance in real-time.


import { usePerformanceMonitor } from '@veltix/ui';
 
function Dashboard() {
  const { metrics, alerts } = usePerformanceMonitor({
    fps: true,
    memory: true,
    network: true,
    renderTime: true
  });
 
  // Handle performance alerts
  useEffect(() => {
    if (alerts.fps < 30) {
      console.warn('Low FPS detected');
    }
  }, [alerts]);
 
  return <DashboardContent />;
}

Performance Profiling

Profile components to identify bottlenecks.


import { Profiler } from 'react';
 
function ProfiledDashboard() {
  const onRenderCallback = (id, phase, actualDuration) => {
    console.log(`Component ${id} took ${actualDuration}ms to render`);
  };
 
  return (
    <Profiler id="Dashboard" onRender={onRenderCallback}>
      <DashboardContent />
    </Profiler>
  );
}

Best Practices

1. Data Management

Use appropriate data structures
Implement efficient caching strategies
Optimize data transfer formats
Use server-side aggregation when possible

2. Component Design

Implement lazy loading for large components
Use React.memo for expensive components
Optimize re-render cycles
Implement virtual scrolling for large lists

3. Rendering Optimization

Disable animations for static dashboards
Use hardware acceleration when available
Implement progressive rendering
Optimize canvas operations

4. Network Optimization

Use compression for data transfer
Implement intelligent caching
Batch API requests when possible
Use WebSocket for real-time updates

5. Memory Management

Clean up event listeners
Dispose of chart instances
Monitor memory usage
Implement proper garbage collection

Performance Checklist

Before Deployment

Ongoing Monitoring

Troubleshooting

Common Performance Issues

Slow rendering

Check component complexity
Verify data size
Enable hardware acceleration
Implement virtual rendering

High memory usage

Check for memory leaks
Optimize data structures
Implement proper cleanup
Monitor garbage collection

Network bottlenecks

Enable compression
Implement caching
Optimize API calls
Use CDN for static assets