Add timeline visualization and fix resource profiling

- Save timeline data for each run (time, memory, CPU)
- Create timelines directory structure
- Add Python visualization script for charts
- Fix integer comparison errors in profiling
- Collect samples throughout program lifetime

run_all.sh

@@ -123,21 +123,22 @@ run_program() {
     local result
     local peak_memory=0
     local peak_cpu=0
+    local timeline_dir="timelines/$name"
+    
+    # Create timeline directory
+    mkdir -p "$timeline_dir"
 
     # Run 4 times, discard first run (warmup)
     for i in 1 2 3 4; do
-        local mem_profile_file="/tmp/${name}_mem_$$_$i"
-        local cpu_profile_file="/tmp/${name}_cpu_$$_$i"
+        local timeline_file="$timeline_dir/run_$i.tsv"
         local start=$(date +%s%N)
         
         # Run program and capture PID for resource profiling
-        if [ "$i" -gt 1 ]; then
-            # For runs 2-4, profile memory and CPU
         "$@" 2>/dev/null &
         local pid=$!
         
         # Profile resources in background
-            local resources=$(profile_resources "$pid" "$mem_profile_file" "$cpu_profile_file")
+        local resources=$(profile_resources "$pid" "/dev/null" "/dev/null" "$timeline_file")
         local peak_mem=$(echo "$resources" | awk '{print $1}')
         local peak_cpu_val=$(echo "$resources" | awk '{print $2}')
         
@@ -145,11 +146,15 @@ run_program() {
         wait "$pid" 2>/dev/null
         local exit_code=$?
         
-            if [ $exit_code -eq 0 ]; then
-                result=$("$@" 2>/dev/null)
         local end=$(date +%s%N)
         local elapsed=$(( (end - start) / 1000000 ))
         
+        if [ $exit_code -eq 0 ]; then
+            # Get result for verification
+            result=$("$@" 2>/dev/null)
+            
+            if [ "$i" -gt 1 ]; then
+                # Only count runs 2-4 for averages
                 total_time=$((total_time + elapsed))
                 total_memory=$((total_memory + peak_mem))
                 total_cpu=$((total_cpu + peak_cpu_val))
@@ -164,24 +169,12 @@ run_program() {
                 if verify "$result" "$DECIMALS"; then
                     ((success_count++))
                 fi
-            else
-                echo -e "${RED}ERROR${NC}"
-                results+=("999999 $name ERROR")
-                rm -f "$mem_profile_file" "$cpu_profile_file"
-                return
             fi
-            
-            rm -f "$mem_profile_file" "$cpu_profile_file"
-        else
-            # First run (warmup) - just execute without profiling
-            if result=$("$@" 2>/dev/null); then
-                :
         else
             echo -e "${RED}ERROR${NC}"
             results+=("999999 $name ERROR")
             return
         fi
-        fi
     done
 
     # Calculate averages
@@ -194,10 +187,10 @@ run_program() {
     local peak_memory_mb=$((peak_memory / 1024))
 
     if [ $success_count -eq 3 ]; then
-        echo -e "${GREEN}SUCCESS${NC} $avg_time ms, ${BLUE}${avg_memory_mb}MB mem, ${YELLOW}${avg_cpu}% CPU avg, ${peak_cpu}% CPU peak${NC}"
+        echo -e "${GREEN}SUCCESS${NC} $avg_time ms, ${BLUE}${avg_memory_mb}MB avg / ${peak_memory_mb}MB peak, ${YELLOW}${avg_cpu}% CPU avg / ${peak_cpu}% CPU peak${NC}"
         results+=("$avg_time $name SUCCESS $avg_memory $peak_memory $avg_cpu $peak_cpu")
     else
-        echo -e "${RED}FAILED${NC} $avg_time ms, ${BLUE}${avg_memory_mb}MB mem, ${YELLOW}${avg_cpu}% CPU avg, ${peak_cpu}% CPU peak${NC}"
+        echo -e "${RED}FAILED${NC} $avg_time ms, ${BLUE}${avg_memory_mb}MB avg / ${peak_memory_mb}MB peak, ${YELLOW}${avg_cpu}% CPU avg / ${peak_cpu}% CPU peak${NC}"
         results+=("$avg_time $name FAILED $avg_memory $peak_memory $avg_cpu $peak_cpu")
     fi
 }

timelines/Bash/run_1.tsv

@@ -0,0 +1 @@
+13   2000 0

timelines/Bash/run_2.tsv

@@ -0,0 +1 @@
+11   2000 0

timelines/Bash/run_3.tsv

@@ -0,0 +1 @@
+16   2000 0

timelines/Bash/run_4.tsv

@@ -0,0 +1 @@
+11   2000 0

timelines/Brainfuck/run_1.tsv

@@ -0,0 +1,3 @@
+11   2000 0
+35   2016 0
+59   2016 0

timelines/Brainfuck/run_2.tsv

@@ -0,0 +1,2 @@
+8   2000 0
+29 0 0

timelines/Brainfuck/run_3.tsv

@@ -0,0 +1,2 @@
+9   2000 0
+34   2000 

timelines/Brainfuck/run_4.tsv

@@ -0,0 +1,2 @@
+8   2000 0
+30   2000 0

timelines/C++/run_1.tsv

@@ -0,0 +1 @@
+11    240 

timelines/C/run_1.tsv

@@ -0,0 +1 @@
+7 0 0

timelines/CSharp/run_1.tsv

@@ -0,0 +1,5 @@
+13   2032 0
+40   2032 0
+64   2032 0
+90   2032 0
+116   2032 0

timelines/CSharp/run_2.tsv

@@ -0,0 +1,2 @@
+9   2016 0
+33   2016 0

timelines/CSharp/run_3.tsv

@@ -0,0 +1,2 @@
+8   2032 0
+33   2032 0

timelines/CSharp/run_4.tsv

@@ -0,0 +1,2 @@
+8   2000 0
+33   2016 0

timelines/Crystal/run_1.tsv

@@ -0,0 +1 @@
+12   2288 

timelines/Crystal/run_2.tsv

@@ -0,0 +1 @@
+6 0 0

timelines/Crystal/run_3.tsv

@@ -0,0 +1 @@
+6 0 0

timelines/Crystal/run_4.tsv

@@ -0,0 +1 @@
+5 0 0

timelines/D/run_1.tsv

@@ -0,0 +1 @@
+10    464 0

timelines/D/run_2.tsv

@@ -0,0 +1 @@
+8    496 

timelines/D/run_3.tsv

@@ -0,0 +1 @@
+8    496 

timelines/D/run_4.tsv

@@ -0,0 +1 @@
+8    496 

timelines/Dart/run_1.tsv

@@ -0,0 +1,2 @@
+12   5344 0
+50 0 0

timelines/Dart/run_2.tsv

@@ -0,0 +1 @@
+12   9088 0

timelines/Dart/run_3.tsv

@@ -0,0 +1 @@
+13  10624 0

timelines/Dart/run_4.tsv

@@ -0,0 +1 @@
+12  10016 0

timelines/Elixir/run_1.tsv

@@ -0,0 +1,16 @@
+15   2032 0
+42   2032 0
+65   2032 0
+94   2032 0
+119   2032 0
+146   2032 0
+169   2032 0
+193   2032 0
+221   2032 0
+246   2032 0
+270   2032 0
+296   2032 0
+319   2032 0
+343   2032 0
+367   2032 0
+393   2032 0

timelines/Elixir/run_2.tsv

@@ -0,0 +1,15 @@
+9   2032 0
+34   2032 0
+62   2032 0
+85   2032 0
+109   2032 0
+135   2032 0
+158   2032 0
+181   2032 0
+213   2032 0
+238   2032 0
+262   2032 0
+288   2032 0
+311   2032 0
+336   2032 0
+359   2032 0

timelines/Elixir/run_3.tsv

@@ -0,0 +1,13 @@
+9   2032 0
+31   2032 0
+57   2032 0
+79   2032 0
+102   2032 0
+126   2032 0
+155   2032 0
+179   2032 0
+202   2032 0
+227   2032 0
+249   2032 0
+272   2032 0
+296   2032 0

timelines/Elixir/run_4.tsv

@@ -0,0 +1,12 @@
+8   2048 0
+31   2048 0
+57   2048 0
+82   2048 0
+106   2048 0
+130   2048 0
+155   2048 0
+179   2048 0
+206   2048 0
+230   2048 0
+256   2048 0
+279   2048 0

timelines/Erlang/run_1.tsv

@@ -0,0 +1,6 @@
+12   2048 0
+36   2048 0
+60   2048 0
+84   2048 0
+108   2048 0
+132 0 0

timelines/Erlang/run_2.tsv

@@ -0,0 +1,10 @@
+8   2032 0
+33   2032 0
+56   2032 0
+79   2032 0
+102   2032 0
+128   2032 0
+151   2032 0
+177   2032 0
+206   2032 0
+227   2032 0

visualize_timelines.py

@@ -0,0 +1,155 @@
+#!/usr/bin/env python3
+"""
+Visualize resource usage timelines from benchmark data.
+Generates SVG charts showing memory and CPU usage over time for each language.
+"""
+
+import os
+import sys
+import matplotlib.pyplot as plt
+import matplotlib
+matplotlib.use('Agg')  # Non-interactive backend
+from pathlib import Path
+import numpy as np
+
+def read_timeline_data(filepath):
+    """Read timeline TSV file and return time, memory, cpu arrays."""
+    times = []
+    memories = []
+    cpus = []
+    
+    with open(filepath, 'r') as f:
+        for line in f:
+            parts = line.strip().split()
+            if len(parts) >= 3:
+                try:
+                    times.append(int(parts[0]))
+                    memories.append(int(parts[1]) / 1024)  # Convert KB to MB
+                    cpus.append(int(parts[2]))
+                except ValueError:
+                    continue
+    
+    return np.array(times), np.array(memories), np.array(cpus)
+
+def create_timeline_chart(language, times, memories, cpus, output_dir):
+    """Create a dual-axis chart showing memory and CPU over time."""
+    if len(times) == 0:
+        print(f"No data for {language}")
+        return
+    
+    fig, ax1 = plt.subplots(figsize=(10, 6))
+    
+    # Memory on left axis
+    color1 = '#2E86AB'  # Blue
+    ax1.set_xlabel('Tid (ms)', fontsize=12)
+    ax1.set_ylabel('Minne (MB)', color=color1, fontsize=12)
+    ax1.plot(times, memories, color=color1, linewidth=2, label='Minne')
+    ax1.tick_params(axis='y', labelcolor=color1)
+    ax1.grid(True, alpha=0.3)
+    
+    # CPU on right axis
+    ax2 = ax1.twinx()
+    color2 = '#E94F37'  # Red
+    ax2.set_ylabel('CPU (%)', color=color2, fontsize=12)
+    ax2.plot(times, cpus, color=color2, linewidth=2, linestyle='--', label='CPU')
+    ax2.tick_params(axis='y', labelcolor=color2)
+    
+    # Title and legend
+    plt.title(f'{language} - Resursanvändning över tid', fontsize=14, fontweight='bold')
+    
+    # Combine legends
+    lines1, labels1 = ax1.get_legend_handles_labels()
+    lines2, labels2 = ax2.get_legend_handles_labels()
+    ax1.legend(lines1 + lines2, labels1 + labels2, loc='upper right')
+    
+    plt.tight_layout()
+    
+    # Save
+    output_file = output_dir / f'{language}_timeline.svg'
+    plt.savefig(output_file, format='svg', dpi=300)
+    plt.close()
+    
+    print(f"Created {output_file}")
+
+def create_comparison_chart(languages_data, output_dir, metric='memory'):
+    """Create a comparison chart for multiple languages."""
+    fig, ax = plt.subplots(figsize=(14, 8))
+    
+    colors = plt.cm.tab20(np.linspace(0, 1, len(languages_data)))
+    
+    for idx, (language, times, values) in enumerate(languages_data):
+        if len(times) > 0:
+            ax.plot(times, values, label=language, linewidth=2, color=colors[idx])
+    
+    if metric == 'memory':
+        ax.set_ylabel('Minne (MB)', fontsize=12)
+        ax.set_title('Minnesanvändning över tid - Jämförelse', fontsize=14, fontweight='bold')
+    else:
+        ax.set_ylabel('CPU (%)', fontsize=12)
+        ax.set_title('CPU-användning över tid - Jämförelse', fontsize=14, fontweight='bold')
+    
+    ax.set_xlabel('Tid (ms)', fontsize=12)
+    ax.grid(True, alpha=0.3)
+    ax.legend(loc='upper right', fontsize=10)
+    
+    plt.tight_layout()
+    
+    output_file = output_dir / f'comparison_{metric}.svg'
+    plt.savefig(output_file, format='svg', dpi=300)
+    plt.close()
+    
+    print(f"Created {output_file}")
+
+def main():
+    if len(sys.argv) < 2:
+        print("Usage: python visualize_timelines.py <timelines_dir> [output_dir]")
+        print("Example: python visualize_timelines.py timelines charts")
+        sys.exit(1)
+    
+    timelines_dir = Path(sys.argv[1])
+    output_dir = Path(sys.argv[2]) if len(sys.argv) > 2 else Path('charts')
+    
+    if not timelines_dir.exists():
+        print(f"Error: Directory {timelines_dir} does not exist")
+        sys.exit(1)
+    
+    output_dir.mkdir(exist_ok=True)
+    
+    # Collect data for all languages
+    all_languages = []
+    
+    # Process each language
+    for lang_dir in sorted(timelines_dir.iterdir()):
+        if lang_dir.is_dir():
+            language = lang_dir.name
+            
+            # Find the best run (usually run_2.tsv)
+            timeline_file = lang_dir / 'run_2.tsv'
+            
+            if timeline_file.exists():
+                times, memories, cpus = read_timeline_data(timeline_file)
+                
+                if len(times) > 0:
+                    # Create individual chart
+                    create_timeline_chart(language, times, memories, cpus, output_dir)
+                    
+                    # Store for comparison
+                    all_languages.append((language, times, memories))
+    
+    # Create comparison charts (top 10 fastest languages)
+    if len(all_languages) > 0:
+        # Sort by execution time and take top 10
+        all_languages.sort(key=lambda x: x[1][-1] if len(x[1]) > 0 else float('inf'))
+        top_10 = all_languages[:10]
+        
+        create_comparison_chart(top_10, output_dir, 'memory')
+        
+        # Create comparison for slowest languages
+        if len(all_languages) > 10:
+            slowest = all_languages[-5:]
+            create_comparison_chart(slowest, output_dir, 'memory')
+    
+    print(f"\nAll charts saved to {output_dir}/")
+
+if __name__ == '__main__':
+    main()