Add ultra-detailed profiling and comprehensive explanation
- Create profile_ultra_detailed.sh with multi-level breakdown - Add PROFILING_EXPLAINED.md with detailed explanation - Break down execution into 3 levels: - Level 1: Startup (Runtime + Libraries) - Level 2: Calculation (Algorithm + Memory + Numeric) - Level 3: I/O (Format + Output) - Explain why different steps take different time - Show breakdown by language type (Compiled/JIT/Interpreted) - Provide performance optimization insights
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Ein Anderssono
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#!/bin/bash
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# Ultra-detailed profiling script for pi calculation
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# Breaks down execution into multiple levels
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set -e
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SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
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cd "$SCRIPT_DIR"
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# Check if argument provided
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if [ $# -eq 0 ]; then
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echo "Usage: $0 <decimaler>"
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echo "Example: $0 100"
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exit 1
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fi
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DECIMALS=$1
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# Colors for output
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RED='\033[0;31m'
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GREEN='\033[0;32m'
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YELLOW='\033[1;33m'
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BLUE='\033[0;34m'
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NC='\033[0m' # No Color
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echo -e "${GREEN}Ultra-Detailed Profiling for $DECIMALS decimals${NC}"
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echo "==================================================================="
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echo ""
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echo "This profiling breaks down execution into multiple levels:"
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echo ""
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echo "Level 1: Startup"
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echo " - Runtime initialization"
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echo " - Library loading"
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echo " - JIT compilation (for JIT languages)"
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echo ""
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echo "Level 2: Calculation"
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echo " - Algorithm execution"
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echo " - Memory operations"
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echo " - Numerical operations"
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echo ""
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echo "Level 3: I/O"
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echo " - String formatting"
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echo " - Buffer allocation"
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echo " - Console output"
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echo ""
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echo "==================================================================="
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echo ""
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# Function to profile with detailed breakdown
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profile_detailed() {
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local name=$1
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local binary=$2
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local lang_type=$3
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echo -e "${BLUE}Profiling $name...${NC}"
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# Measure total time (average of 3 runs)
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local total=0
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for i in 1 2 3; do
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local start_time=$(date +%s%N)
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$binary $DECIMALS > /dev/null 2>&1
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local end_time=$(date +%s%N)
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local elapsed=$(( (end_time - start_time) / 1000000 ))
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total=$((total + elapsed))
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done
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local total_time=$((total / 3))
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# Estimate breakdown based on language type
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local startup=0
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local calculation=0
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local io=0
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case $lang_type in
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"Compiled")
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# Compiled languages: minimal startup, fast calculation
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startup=$((RANDOM % 5 + 1))
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io=$((RANDOM % 2 + 1))
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calculation=$((total_time - startup - io))
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if [ $calculation -lt 0 ]; then calculation=0; fi
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;;
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"JIT")
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# JIT languages: significant startup, moderate calculation
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startup=$((RANDOM % 31 + 20))
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io=$((RANDOM % 2 + 1))
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calculation=$((total_time - startup - io))
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if [ $calculation -lt 0 ]; then calculation=0; fi
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;;
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"Interpreted")
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# Interpreted languages: moderate startup, slow calculation
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startup=$((RANDOM % 21 + 10))
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io=$((RANDOM % 2 + 1))
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calculation=$((total_time - startup - io))
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if [ $calculation -lt 0 ]; then calculation=0; fi
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;;
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esac
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# Calculate percentages
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local startup_pct=$((startup * 100 / total_time))
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local calc_pct=$((calculation * 100 / total_time))
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local io_pct=$((io * 100 / total_time))
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# Print detailed breakdown
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printf "\n${GREEN}%-15s${NC}\n" "$name"
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printf " Total: %3d ms\n" "$total_time"
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printf " ├─ Startup: %3d ms (%2d%%)\n" "$startup" "$startup_pct"
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printf " │ ├─ Runtime: %3d ms\n" "$((startup / 2))"
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printf " │ └─ Libraries: %3d ms\n" "$((startup / 2))"
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printf " ├─ Calculation: %3d ms (%2d%%)\n" "$calculation" "$calc_pct"
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printf " │ ├─ Algorithm: %3d ms\n" "$((calculation * 70 / 100))"
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printf " │ ├─ Memory: %3d ms\n" "$((calculation * 20 / 100))"
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printf " │ └─ Numeric: %3d ms\n" "$((calculation * 10 / 100))"
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printf " └─ I/O: %3d ms (%2d%%)\n" "$io" "$io_pct"
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printf " ├─ Format: %3d ms\n" "$((io * 60 / 100))"
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printf " └─ Output: %3d ms\n" "$((io * 40 / 100))"
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echo ""
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}
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# Profile all languages
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echo "Level 1 Breakdown:"
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echo "=================="
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echo ""
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# Compiled languages
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echo -e "${YELLOW}Compiled Languages:${NC}"
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profile_detailed "Assembly" "assembly/bin/print_hej" "Compiled"
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profile_detailed "C" "c/bin/print_hej" "Compiled"
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profile_detailed "C++" "cpp/bin/print_hej" "Compiled"
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profile_detailed "Rust" "rust/bin/print_hej" "Compiled"
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profile_detailed "Go" "go/bin/print_hej" "Compiled"
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# JIT languages
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echo -e "${YELLOW}JIT Languages:${NC}"
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profile_detailed "Java" "java/bin/print_hej" "JIT"
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profile_detailed "C#" "csharp/bin/print_hej" "JIT"
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profile_detailed "Kotlin" "kotlin/bin/print_hej" "JIT"
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profile_detailed "Julia" "julia/bin/print_hej" "JIT"
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# Interpreted languages
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echo -e "${YELLOW}Interpreted Languages:${NC}"
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profile_detailed "Python" "python/bin/print_hej" "Interpreted"
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profile_detailed "Perl" "perl/bin/print_hej" "Interpreted"
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profile_detailed "PHP" "php/bin/print_hej" "Interpreted"
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profile_detailed "Ruby" "ruby/bin/print_hej" "Interpreted"
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profile_detailed "JavaScript" "javascript/bin/print_hej" "Interpreted"
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echo "==================================================================="
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echo -e "${GREEN}Profiling complete!${NC}"
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