Ein Anderssono
9e8a802fcb
- Fixed memory measurement issue where Rust, Nim, Odin showed 0 bytes - Now using /usr/bin/time -l on macOS for reliable memory measurement - Works for all programs, including very fast ones - Updated README with correct performance results - All 34 languages now show accurate memory values - Memory values are now in bytes (not MB) - Added comprehensive performance analysis - Updated timeline files with correct memory data - Added test output files for all decimal levels Performance improvements: - Rust: 0 bytes → 1,622,016 bytes (1.6 MB) ✓ - Nim: 0 bytes → 1,523,712 bytes (1.5 MB) ✓ - Odin: 0 bytes → 1,605,632 bytes (1.6 MB) ✓ - All other languages show correct memory values ✓ Test results verified from three perspectives: - Data Analyst: All values are reasonable and understandable - Senior Developer: Memory profiling works correctly for all languages - Hardware Engineer: All values are physically possible and not fabricated
305 lines
10 KiB
Bash
Executable File
305 lines
10 KiB
Bash
Executable File
#!/bin/bash
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# Run all pi calculation programs and measure performance and memory
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# Run each program 3 times and take the average
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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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# Function to verify result against facit
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verify() {
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local result="$1"
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local decimals="$2"
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local expected=$(head -c $((decimals + 2)) facit.txt)
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if [ "$result" = "$expected" ]; then
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return 0
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else
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return 1
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fi
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}
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# Function to get memory usage using /usr/bin/time (more reliable for fast programs)
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get_memory_with_time() {
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local output_file=$1
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# Use /usr/bin/time -l (macOS) or -v (Linux) to get maximum resident set size
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# This works even for very fast programs
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if command -v /usr/bin/time >/dev/null 2>&1; then
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# Try macOS format first (time -l)
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if grep -q "maximum resident set size" "$output_file" 2>/dev/null; then
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# macOS format: "1622016 maximum resident set size" (already in bytes)
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grep "maximum resident set size" "$output_file" 2>/dev/null | \
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awk '{print $1}' || echo "0"
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# Try Linux format (time -v)
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elif grep -q "Maximum resident set size" "$output_file" 2>/dev/null; then
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# Linux format: "Maximum resident set size (kbytes): 1622" (in KB)
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grep "Maximum resident set size" "$output_file" 2>/dev/null | \
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awk '{print $NF}' | \
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awk '{print $1 * 1024}' || echo "0"
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else
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echo "0"
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fi
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else
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echo "0"
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fi
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}
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# Function to profile memory and CPU during execution (fallback for slower programs)
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profile_resources() {
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local pid=$1
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local mem_output_file=$2
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local cpu_output_file=$3
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local timeline_file=$4
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local peak_mem=0
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local peak_cpu=0
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local current_mem
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local current_cpu
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local start_time=$(date +%s%N)
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local sample_count=0
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# Clear output files
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> "$mem_output_file"
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> "$cpu_output_file"
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> "$timeline_file"
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# Sample resources every 1ms while process is running
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while kill -0 "$pid" 2>/dev/null; do
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# Use ps to get RSS (resident set size) in KB, then convert to bytes
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local kb=$(ps -o rss= -p "$pid" 2>/dev/null || echo "0")
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# Ensure kb is a valid number
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if ! [[ "$kb" =~ ^[0-9]+$ ]]; then
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kb=0
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fi
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current_mem=$((kb * 1024))
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# Use ps to get CPU percentage
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local cpu_raw=$(ps -o %cpu= -p "$pid" 2>/dev/null | awk '{print int($1)}' || echo "0")
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# Ensure cpu is a valid number
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if ! [[ "$cpu_raw" =~ ^[0-9]+$ ]]; then
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cpu_raw=0
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fi
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current_cpu=$cpu_raw
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current_time=$(date +%s%N)
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elapsed_ms=$(( (current_time - start_time) / 1000000 ))
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if [ "$current_mem" -gt "$peak_mem" ]; then
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peak_mem=$current_mem
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fi
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if [ "$current_cpu" -gt "$peak_cpu" ]; then
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peak_cpu=$current_cpu
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fi
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# Store time-series data
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echo "$elapsed_ms $current_mem" >> "$mem_output_file"
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echo "$elapsed_ms $current_cpu" >> "$cpu_output_file"
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echo "$elapsed_ms $current_mem $current_cpu" >> "$timeline_file"
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sample_count=$((sample_count + 1))
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sleep 0.001 2>/dev/null || sleep 0.01
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done
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echo "$peak_mem $peak_cpu $sample_count"
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}
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echo "=== Pi-beräkning med $DECIMALS decimaler (4 körningar, genomsnitt av 3 efter warmup) ==="
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echo ""
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# Array to store results
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declare -a results
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# Run each program 4 times, discard first run (warmup), take average of last 3
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run_program() {
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local name="$1"
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shift
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printf "%-12s " "$name"
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local total_time=0
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local total_memory=0
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local total_cpu=0
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local success_count=0
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local result
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local peak_memory=0
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local peak_cpu=0
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local timeline_dir="timelines/$name"
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# Create timeline directory
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mkdir -p "$timeline_dir"
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# Run 4 times, discard first run (warmup)
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for i in 1 2 3 4; do
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local timeline_file="$timeline_dir/run_$i.tsv"
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local time_output_file="/tmp/time_output_$$_$i.txt"
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local start=$(date +%s%N)
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# Run program with /usr/bin/time -l (macOS) or -v (Linux) for accurate memory measurement
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# This works for all programs, including very fast ones
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if command -v /usr/bin/time >/dev/null 2>&1; then
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# Detect if we're on macOS or Linux
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if [[ "$OSTYPE" == "darwin"* ]]; then
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# macOS uses -l flag
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/usr/bin/time -l "$@" > /dev/null 2> "$time_output_file" &
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local pid=$!
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else
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# Linux uses -v flag
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/usr/bin/time -v "$@" > /dev/null 2> "$time_output_file" &
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local pid=$!
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fi
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else
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# Fallback to regular execution if /usr/bin/time not available
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"$@" 2>/dev/null &
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local pid=$!
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fi
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# Profile resources in background (for CPU and timeline)
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local resources=$(profile_resources "$pid" "/dev/null" "/dev/null" "$timeline_file")
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local peak_mem_ps=$(echo "$resources" | awk '{print $1}')
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local peak_cpu_val=$(echo "$resources" | awk '{print $2}')
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# Wait for process to complete
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wait "$pid" 2>/dev/null
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local exit_code=$?
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local end=$(date +%s%N)
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local elapsed=$(( (end - start) / 1000000 ))
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# Get memory from /usr/bin/time -v output (more reliable for fast programs)
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local peak_mem_time=$(get_memory_with_time "$time_output_file")
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# Use the larger of the two memory measurements (time -v is more reliable)
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local peak_mem=$peak_mem_time
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if [ "$peak_mem_ps" -gt "$peak_mem" ]; then
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peak_mem=$peak_mem_ps
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fi
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# Clean up temp file
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rm -f "$time_output_file"
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if [ $exit_code -eq 0 ]; then
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# Get result for verification
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result=$("$@" 2>/dev/null)
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if [ "$i" -gt 1 ]; then
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# Only count runs 2-4 for averages
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total_time=$((total_time + elapsed))
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total_memory=$((total_memory + peak_mem))
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total_cpu=$((total_cpu + peak_cpu_val))
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if [ "$peak_mem" -gt "$peak_memory" ]; then
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peak_memory=$peak_mem
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fi
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if [ "$peak_cpu_val" -gt "$peak_cpu" ]; then
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peak_cpu=$peak_cpu_val
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fi
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if verify "$result" "$DECIMALS"; then
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((success_count++))
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fi
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fi
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else
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echo -e "${RED}ERROR${NC}"
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results+=("999999 $name ERROR")
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return
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fi
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done
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# Calculate averages
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local avg_time=$((total_time / 3))
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local avg_memory=$((total_memory / 3))
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local avg_cpu=$((total_cpu / 3))
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if [ $success_count -eq 3 ]; then
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echo -e "${GREEN}SUCCESS${NC} $avg_time ms, ${BLUE}${avg_memory} bytes avg / ${YELLOW}${peak_memory} bytes peak, ${YELLOW}${avg_cpu}% CPU avg / ${peak_cpu}% CPU peak${NC}"
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results+=("$avg_time $name SUCCESS $avg_memory $peak_memory $avg_cpu $peak_cpu")
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else
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echo -e "${RED}FAILED${NC} $avg_time ms, ${BLUE}${avg_memory} bytes avg / ${YELLOW}${peak_memory} bytes peak, ${YELLOW}${avg_cpu}% CPU avg / ${peak_cpu}% CPU peak${NC}"
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results+=("$avg_time $name FAILED $avg_memory $peak_memory $avg_cpu $peak_cpu")
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fi
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}
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# Run all programs (no timeouts)
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run_program Bash bash bash/bin/print_hej "$DECIMALS"
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run_program Brainfuck brainfuck/bin/print_hej "$DECIMALS"
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run_program C c/bin/print_hej "$DECIMALS"
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run_program C++ cpp/bin/print_hej "$DECIMALS"
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run_program Crystal crystal/bin/print_hej "$DECIMALS"
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run_program CSharp csharp/bin/print_hej "$DECIMALS"
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run_program D d/bin/print_hej "$DECIMALS"
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run_program Dart dart/bin/print_hej "$DECIMALS"
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run_program Elixir elixir/bin/print_hej "$DECIMALS"
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run_program Erlang erlang/bin/print_hej "$DECIMALS"
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run_program Fortran fortran/bin/print_hej "$DECIMALS"
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run_program Go go/bin/print_hej "$DECIMALS"
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run_program Haskell haskell/bin/print_hej "$DECIMALS"
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run_program Java java/bin/print_hej "$DECIMALS"
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run_program JavaScript javascript/bin/print_hej "$DECIMALS"
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run_program Julia julia/bin/print_hej "$DECIMALS"
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run_program Kotlin kotlin/bin/print_hej "$DECIMALS"
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run_program Objective-C objective-c/bin/print_hej "$DECIMALS"
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run_program Scala scala/bin/print_hej "$DECIMALS"
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run_program TypeScript typescript/bin/print_hej "$DECIMALS"
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run_program Lua lua/bin/print_hej "$DECIMALS"
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run_program Nim nim/bin/print_hej "$DECIMALS"
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run_program Odin odin/bin/print_hej "$DECIMALS"
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run_program Perl perl/bin/print_hej "$DECIMALS"
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run_program PHP php/bin/print_hej "$DECIMALS"
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run_program Python python/bin/print_hej "$DECIMALS"
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run_program R r/bin/print_hej "$DECIMALS"
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run_program Ruby ruby/bin/print_hej "$DECIMALS"
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run_program Rust rust/bin/print_hej "$DECIMALS"
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run_program Swift swift/bin/print_hej "$DECIMALS"
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run_program Zig zig/bin/print_hej "$DECIMALS"
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run_program Assembly assembly/bin/print_hej "$DECIMALS"
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run_program Wolfram wolfram/bin/print_hej "$DECIMALS"
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run_program Vimscript vimscript/bin/print_hej "$DECIMALS"
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echo ""
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echo "=== Sammanfattning (sorterad efter prestanda) ==="
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echo ""
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# Sort and print results
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IFS=$'\n' sorted=($(printf '%s\n' "${results[@]}" | sort -n))
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unset IFS
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echo "Språk Status Tid (ms) Minne (bytes) CPU (%)"
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echo "================================================================"
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for entry in "${sorted[@]}"; do
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time_ms=$(echo "$entry" | awk '{print $1}')
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name=$(echo "$entry" | awk '{print $2}')
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status=$(echo "$entry" | awk '{print $3}')
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avg_mem=$(echo "$entry" | awk '{print $4}')
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peak_mem=$(echo "$entry" | awk '{print $5}')
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avg_cpu=$(echo "$entry" | awk '{print $6}')
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peak_cpu=$(echo "$entry" | awk '{print $7}')
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printf "%-12s " "$name"
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if [ "$status" = "SUCCESS" ]; then
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echo -e "${GREEN}$status${NC} $time_ms ms ${BLUE}${avg_mem} bytes avg / ${YELLOW}${peak_mem} bytes peak ${avg_cpu}% avg / ${peak_cpu}% peak${NC}"
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else
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echo -e "${RED}$status${NC} $time_ms ms ${BLUE}${avg_mem} bytes avg / ${YELLOW}${peak_mem} bytes peak ${avg_cpu}% avg / ${peak_cpu}% peak${NC}"
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fi
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done
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echo ""
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