Performance Tuning Guide
Comprehensive guide to optimizing performance of Lambda Softworks' Linux automation scripts and managed services.
This guide covers performance optimization techniques for Lambda Softworks' scripts and the services they manage.
Performance Analysis
System Performance Profiling
# Run comprehensive performance analysis ./performance-analyzer.sh --full-analysis # Generate baseline metrics ./performance-analyzer.sh --create-baseline \ --metrics cpu,memory,disk,network \ --duration 24h
Resource Usage Analysis
# Analyze current resource usage ./performance-analyzer.sh --analyze-resources \ --components all \ --detail-level high # Generate resource usage report ./performance-analyzer.sh --resource-report \ --format html \ --period last-week
System Optimization
Automatic Optimization
# Run automatic system optimization ./performance-optimizer.sh --auto-optimize \ --target-services all \ --risk-level safe # Schedule periodic optimization ./performance-optimizer.sh --schedule-optimization \ --frequency daily \ --time "03:00" \ --backup-first
Manual Tuning
# CPU optimization ./performance-optimizer.sh --optimize-cpu \ --governor performance \ --nice-priorities \ --process-affinity # Memory optimization ./performance-optimizer.sh --optimize-memory \ --swappiness 10 \ --cache-pressure 50 \ --huge-pages auto
Service-Specific Optimization
Web Server Optimization
# Optimize Nginx ./performance-optimizer.sh --optimize-nginx \ --worker-processes auto \ --worker-connections 2048 \ --keepalive 65 \ --fastcgi-cache \ --gzip-compression # Configure PHP-FPM ./performance-optimizer.sh --optimize-php \ --pm dynamic \ --max-children 50 \ --start-servers 5 \ --min-spare 5 \ --max-spare 35
Database Optimization
# MySQL/MariaDB optimization ./performance-optimizer.sh --optimize-mysql \ --innodb-buffer-pool-size 4G \ --query-cache-size 0 \ --table-open-cache 4000 \ --analyze-tables # Configure Redis ./performance-optimizer.sh --optimize-redis \ --maxmemory 2gb \ --maxmemory-policy allkeys-lru \ --no-appendfsync-on-rewrite yes
I/O Optimization
Storage Optimization
# Optimize disk I/O ./performance-optimizer.sh --optimize-io \ --scheduler deadline \ --readahead 8192 \ --io-priority high # Configure file system ./performance-optimizer.sh --optimize-fs \ --mount-options noatime,nodiratime \ --journal-mode writeback \ --commit-interval 30
Network Optimization
# Optimize network stack ./performance-optimizer.sh --optimize-network \ --tcp-bbr \ --tcp-fastopen \ --tcp-slow-start-after-idle 0
Monitoring and Alerts
Performance Monitoring
# Set up performance monitoring ./performance-monitor.sh --setup \ --metrics-retention 30d \ --alert-thresholds auto \ --trending-analysis # Configure performance alerts ./performance-monitor.sh --configure-alerts \ --cpu-threshold 80 \ --memory-threshold 85 \ --disk-threshold 85 \ --load-threshold "cores * 1.5"
Performance Reporting
# Generate performance report ./performance-monitor.sh --generate-report \ --type comprehensive \ --period last-month \ --include-trends \ --format pdf
Configuration Examples
High-Performance Web Server
# /etc/lambdasoftworks/performance/web-server.yml
nginx:
worker_processes: auto
worker_connections: 2048
worker_rlimit_nofile: 30000
keepalive_timeout: 65
keepalive_requests: 1000
http:
sendfile: on
tcp_nopush: on
tcp_nodelay: on
# Buffers
client_body_buffer_size: 128k
client_max_body_size: 10m
client_header_buffer_size: 1k
large_client_header_buffers: "4 8k"
# Timeouts
client_body_timeout: 12
client_header_timeout: 12
send_timeout: 10
# Compression
gzip: on
gzip_comp_level: 5
gzip_min_length: 256
gzip_types:
- text/plain
- text/css
- application/json
- application/x-javascript
- text/xml
- application/xml
- text/javascript
php_fpm:
global:
error_log: /var/log/php-fpm.log
syslog.facility: daemon
syslog.ident: php-fpm
log_level: warning
www:
user: www-data
group: www-data
listen: /run/php-fpm.sock
listen.backlog: 65535
# Process Manager
pm: dynamic
pm.max_children: 50
pm.start_servers: 5
pm.min_spare_servers: 5
pm.max_spare_servers: 35
pm.max_requests: 500
# Timeouts
request_terminate_timeout: 60s
request_slowlog_timeout: 5s
High-Performance Database
# /etc/lambdasoftworks/performance/database.yml mysql: innodb_buffer_pool_size: 4G innodb_buffer_pool_instances: 4 innodb_read_io_threads: 4 innodb_write_io_threads: 4 innodb_io_capacity: 2000 innodb_io_capacity_max: 4000 # Transaction Log innodb_log_file_size: 1G innodb_log_buffer_size: 16M # Query Cache (disabled for high-performance) query_cache_type: 0 query_cache_size: 0 # Connections max_connections: 1000 thread_cache_size: 128 # Temporary Tables tmp_table_size: 64M max_heap_table_size: 64M # Buffers key_buffer_size: 256M sort_buffer_size: 4M read_buffer_size: 3M read_rnd_buffer_size: 4M
Performance Troubleshooting
Common Issues
- High CPU Usage
# Analyze CPU usage ./performance-analyzer.sh --analyze-cpu \ --top-processes 10 \ --interval 1s \ --duration 5m
- Memory Leaks
# Memory leak detection ./performance-analyzer.sh --detect-leaks \ --process-name nginx \ --monitoring-time 1h
- Disk I/O Bottlenecks
# I/O analysis ./performance-analyzer.sh --analyze-io \ --device /dev/sda \ --include-latency \ --show-top-writers
Best Practices
Regular Maintenance
- Schedule periodic optimization
- Monitor performance trends
- Update baseline metrics
Testing
- Test optimizations in staging
- Validate changes under load
- Document performance impacts
Documentation
- Record configuration changes
- Document optimization results
- Maintain tuning history