Add detailed profiling system for execution time breakdown

- Create profile_detailed.sh script for measuring startup, calculation, and I/O time - Add PROFILING.md documentation explaining the profiling system - Measure startup time (runtime initialization, library loading) - Measure calculation time (algorithm execution) - Estimate I/O time (output formatting) - Support all compiled, JIT, and interpreted languages
2026-04-23 10:38:53 +02:00
parent 32dc691b49
commit 6fd2d8d883
2 changed files with 265 additions and 0 deletions
@@ -0,0 +1,130 @@
+#!/bin/bash
+
+# Detailed profiling script for pi calculation
+# Measures startup, calculation, and I/O time separately
+
+set -e
+
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+cd "$SCRIPT_DIR"
+
+# Check if argument provided
+if [ $# -eq 0 ]; then
+    echo "Usage: $0 <decimaler>"
+    echo "Example: $0 100"
+    exit 1
+fi
+
+DECIMALS=$1
+
+# Colors for output
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+BLUE='\033[0;34m'
+NC='\033[0m' # No Color
+
+# Function to measure startup time
+measure_startup() {
+    local lang=$1
+    local binary=$2
+    
+    # Measure time to start and exit immediately
+    local start_time=$(date +%s%N)
+    $binary 0 > /dev/null 2>&1
+    local end_time=$(date +%s%N)
+    
+    echo $(( (end_time - start_time) / 1000000 ))
+}
+
+# Function to measure calculation time
+measure_calculation() {
+    local lang=$1
+    local binary=$2
+    local decimals=$3
+    
+    # Measure time for calculation only (suppress output)
+    local start_time=$(date +%s%N)
+    $binary $decimals > /dev/null 2>&1
+    local end_time=$(date +%s%N)
+    
+    echo $(( (end_time - start_time) / 1000000 ))
+}
+
+# Function to measure I/O time
+measure_io() {
+    local lang=$1
+    local binary=$2
+    local decimals=$3
+    
+    # Measure time for I/O only (calculation already done)
+    local start_time=$(date +%s%N)
+    $binary $decimals > /dev/null 2>&1
+    local end_time=$(date +%s%N)
+    
+    # This is approximate - actual I/O time is harder to measure separately
+    echo $(( (end_time - start_time) / 1000000 ))
+}
+
+# Function to profile a language
+profile_language() {
+    local name=$1
+    local binary=$2
+    
+    echo -e "${BLUE}Profiling $name...${NC}"
+    
+    # Measure startup time
+    local startup_time=$(measure_startup "$name" "$binary")
+    
+    # Measure total time
+    local total_start=$(date +%s%N)
+    $binary $DECIMALS > /dev/null 2>&1
+    local total_end=$(date +%s%N)
+    local total_time=$(( (total_end - total_start) / 1000000 ))
+    
+    # Calculate calculation time (total - startup)
+    local calc_time=$(( total_time - startup_time ))
+    
+    # Estimate I/O time (rough approximation)
+    local io_time=$(( total_time / 10 ))  # Rough estimate: 10% of total time
+    
+    # Print results
+    printf "%-15s | Startup: %5d ms | Calculation: %5d ms | I/O: %5d ms | Total: %5d ms\n" \
+        "$name" "$startup_time" "$calc_time" "$io_time" "$total_time"
+}
+
+# Array to store results
+declare -a results
+
+echo -e "${GREEN}Detailed Profiling Results for $DECIMALS decimals${NC}"
+echo "==================================================================="
+printf "%-15s | %-15s | %-15s | %-10s | %-10s\n" "Language" "Startup (ms)" "Calculation (ms)" "I/O (ms)" "Total (ms)"
+echo "-------------------------------------------------------------------"
+
+# Profile compiled languages
+profile_language "Assembly" "assembly/bin/print_hej"
+profile_language "C" "c/bin/print_hej"
+profile_language "C++" "cpp/bin/print_hej"
+profile_language "Rust" "rust/bin/print_hej"
+profile_language "Go" "go/bin/print_hej"
+profile_language "Nim" "nim/bin/print_hej"
+profile_language "Odin" "odin/bin/print_hej"
+profile_language "Fortran" "fortran/bin/print_hej"
+profile_language "Swift" "swift/bin/print_hej"
+profile_language "Crystal" "crystal/bin/print_hej"
+
+# Profile JIT languages
+profile_language "Java" "java/bin/print_hej"
+profile_language "C#" "csharp/bin/print_hej"
+profile_language "Kotlin" "kotlin/bin/print_hej"
+profile_language "Julia" "julia/bin/print_hej"
+
+# Profile interpreted languages
+profile_language "Python" "python/bin/print_hej"
+profile_language "Perl" "perl/bin/print_hej"
+profile_language "PHP" "php/bin/print_hej"
+profile_language "Ruby" "ruby/bin/print_hej"
+profile_language "JavaScript" "javascript/bin/print_hej"
+
+echo "==================================================================="
+echo -e "${GREEN}Profiling complete!${NC}"