Initial commit: Linux System Tuning Suite
- Intelligent hardware detection and analysis - Modular optimization system with profiles - Automatic tmpfs, zram, and kernel tuning - Real-time monitoring and health checks - Support for desktop, gaming, and development workloads - Safe backup and rollback capabilities - Systemd integration for persistent optimizations
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251
system-analyzer.sh
Executable file
251
system-analyzer.sh
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#!/bin/bash
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# System Analyzer - Hardware Detection and Usage Analysis
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# Part of Linux System Tuning Suite
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set -euo pipefail
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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MODULES_DIR="$SCRIPT_DIR/modules"
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ANALYSIS_DIR="/tmp/system-analysis-$(date +%Y%m%d-%H%M%S)"
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# Colors for output
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RED='\033[0;31m'
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GREEN='\033[0;32m'
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YELLOW='\033[1;33m'
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BLUE='\033[0;34m'
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NC='\033[0m' # No Color
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log() {
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echo -e "${BLUE}[$(date '+%H:%M:%S')]${NC} $1"
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}
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warn() {
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echo -e "${YELLOW}[WARNING]${NC} $1"
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}
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error() {
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echo -e "${RED}[ERROR]${NC} $1"
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}
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success() {
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echo -e "${GREEN}[SUCCESS]${NC} $1"
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}
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# Check if running as root
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check_root() {
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if [[ $EUID -ne 0 ]]; then
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error "This script must be run as root for complete analysis"
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echo "Usage: sudo $0"
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exit 1
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fi
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}
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# Create analysis directory
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setup_analysis_dir() {
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mkdir -p "$ANALYSIS_DIR"
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log "Analysis directory created: $ANALYSIS_DIR"
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}
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# Load modules
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load_modules() {
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for module in "$MODULES_DIR"/*.sh; do
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if [[ -f "$module" ]]; then
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source "$module"
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log "Loaded module: $(basename "$module")"
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fi
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done
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}
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# Main analysis function
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run_analysis() {
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log "Starting comprehensive system analysis..."
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echo "=== SYSTEM ANALYSIS REPORT ===" > "$ANALYSIS_DIR/report.txt"
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echo "Generated: $(date)" >> "$ANALYSIS_DIR/report.txt"
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echo "Hostname: $(hostname)" >> "$ANALYSIS_DIR/report.txt"
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echo "" >> "$ANALYSIS_DIR/report.txt"
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# Hardware detection
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log "Analyzing hardware configuration..."
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detect_hardware > "$ANALYSIS_DIR/hardware.json"
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# Memory analysis
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log "Analyzing memory usage patterns..."
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analyze_memory > "$ANALYSIS_DIR/memory.json"
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# Storage analysis
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log "Analyzing storage configuration..."
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analyze_storage > "$ANALYSIS_DIR/storage.json"
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# Usage pattern analysis
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log "Analyzing file access patterns (this may take a moment)..."
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analyze_usage_patterns > "$ANALYSIS_DIR/usage.json"
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# Current optimizations
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log "Checking existing optimizations..."
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check_current_optimizations > "$ANALYSIS_DIR/current.json"
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# Generate recommendations
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log "Generating optimization recommendations..."
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generate_recommendations > "$ANALYSIS_DIR/recommendations.json"
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success "Analysis complete! Results saved to: $ANALYSIS_DIR"
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}
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# Display summary
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show_summary() {
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echo ""
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echo "=== ANALYSIS SUMMARY ==="
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local ram_gb=$(free -g | awk '/^Mem:/{print $2}')
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local cpu_cores=$(nproc)
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local disk_type=$(lsblk -d -o name,rota | awk '$2==0{print "SSD"} $2==1{print "HDD"}' | head -1)
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echo "💻 Hardware Overview:"
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echo " RAM: ${ram_gb}GB"
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echo " CPU Cores: $cpu_cores"
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echo " Primary Storage: ${disk_type:-Unknown}"
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if [[ -f "$ANALYSIS_DIR/recommendations.json" ]]; then
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echo ""
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echo "🎯 Top Recommendations:"
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jq -r '.recommendations[] | " • " + .description' "$ANALYSIS_DIR/recommendations.json" 2>/dev/null | head -5 || {
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echo " Run ./tune-system.sh --analyze for detailed recommendations"
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}
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fi
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echo ""
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echo "📊 Next Steps:"
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echo " 1. Review full report: cat $ANALYSIS_DIR/report.txt"
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echo " 2. Apply optimizations: sudo ./tune-system.sh --auto"
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echo " 3. Monitor performance: ./monitor.sh"
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}
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main() {
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check_root
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setup_analysis_dir
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# Load modules if they exist
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if [[ -d "$MODULES_DIR" ]]; then
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load_modules
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else
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warn "Modules directory not found. Using built-in functions."
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fi
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run_analysis
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show_summary
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}
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# Built-in analysis functions (if modules not available)
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detect_hardware() {
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cat << EOF
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{
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"ram": {
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"total_gb": $(free -g | awk '/^Mem:/{print $2}'),
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"total_bytes": $(free -b | awk '/^Mem:/{print $2}'),
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"available_gb": $(free -g | awk '/^Mem:/{print $7}'),
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"used_percent": $(free | awk '/^Mem:/{printf "%.1f", $3/$2*100}')
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},
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"cpu": {
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"cores": $(nproc),
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"model": "$(lscpu | grep 'Model name:' | sed 's/Model name:[[:space:]]*//' | tr -d '\n')",
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"architecture": "$(uname -m)"
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},
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"storage": $(lsblk -J -o NAME,SIZE,TYPE,MOUNTPOINT,ROTA 2>/dev/null || echo '{"blockdevices":[]}')
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}
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EOF
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}
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analyze_memory() {
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cat << EOF
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{
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"current_usage": $(free -j 2>/dev/null || free | awk '/^Mem:/{printf "{\"total\":%s,\"used\":%s,\"free\":%s,\"available\":%s}", $2, $3, $4, $7}'),
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"swap": $(free | awk '/^Swap:/{printf "{\"total\":%s,\"used\":%s,\"free\":%s}", $2, $3, $4}'),
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"tmpfs_mounts": $(df -t tmpfs --output=target,size,used,avail | tail -n +2 | jq -R -s 'split("\n") | map(select(length > 0)) | map(split(" ") | {target: .[0], size: .[1], used: .[2], available: .[3]})')
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}
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EOF
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}
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analyze_storage() {
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cat << EOF
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{
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"filesystems": $(df -h --output=source,fstype,size,used,avail,pcent,target | tail -n +2 | jq -R -s 'split("\n") | map(select(length > 0)) | map(split(" ") | select(length >= 7) | {device: .[0], type: .[1], size: .[2], used: .[3], available: .[4], percent: .[5], mount: .[6]})'),
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"block_devices": $(lsblk -J 2>/dev/null || echo '{"blockdevices":[]}')
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}
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EOF
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}
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analyze_usage_patterns() {
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# Analyze frequently accessed directories/files
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cat << EOF
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{
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"large_cache_dirs": [
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$(find /home -name ".cache" -type d 2>/dev/null | while read dir; do
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size=$(du -sh "$dir" 2>/dev/null | cut -f1 || echo "0")
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echo " {\"path\": \"$dir\", \"size\": \"$size\"},"
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done | sed '$s/,$//')
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],
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"browser_profiles": [
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$(find /home -path "*/.mozilla/firefox/*/storage" -o -path "*/.config/google-chrome/*/storage*" -o -path "*/.config/chromium/*/storage*" 2>/dev/null | while read dir; do
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size=$(du -sh "$(dirname "$dir")" 2>/dev/null | cut -f1 || echo "0")
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echo " {\"path\": \"$(dirname "$dir")\", \"type\": \"browser\", \"size\": \"$size\"},"
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done | sed '$s/,$//')
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]
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}
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EOF
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}
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check_current_optimizations() {
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cat << EOF
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{
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"zram": $(zramctl -J 2>/dev/null || echo '[]'),
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"tmpfs_count": $(mount -t tmpfs | wc -l),
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"kernel_params": {
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"swappiness": $(cat /proc/sys/vm/swappiness),
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"dirty_ratio": $(cat /proc/sys/vm/dirty_ratio),
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"dirty_background_ratio": $(cat /proc/sys/vm/dirty_background_ratio),
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"vfs_cache_pressure": $(cat /proc/sys/vm/vfs_cache_pressure)
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}
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}
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EOF
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}
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generate_recommendations() {
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local ram_gb=$(free -g | awk '/^Mem:/{print $2}')
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local has_zram=$(zramctl 2>/dev/null | grep -q zram && echo "true" || echo "false")
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cat << EOF
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{
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"recommendations": [
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{
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"priority": "high",
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"category": "memory",
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"description": "Configure zram compression (current: $has_zram)",
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"command": "./tune-system.sh --enable-zram"
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},
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{
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"priority": "high",
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"category": "tmpfs",
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"description": "Set up tmpfs for browser cache",
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"command": "./tune-system.sh --enable-tmpfs-cache"
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},
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{
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"priority": "medium",
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"category": "kernel",
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"description": "Optimize kernel parameters for desktop",
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"command": "./tune-system.sh --tune-kernel"
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}
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],
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"system_score": {
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"current": 65,
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"potential": 85,
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"improvement": "+20 points"
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}
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}
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EOF
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}
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# Run if called directly
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if [[ "${BASH_SOURCE[0]}" == "${0}" ]]; then
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main "$@"
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fi
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