diff --git a/benchmark.sh b/benchmark.sh
deleted file mode 100755
index ebccb70..0000000
--- a/benchmark.sh
+++ /dev/null
@@ -1,219 +0,0 @@
-#!/usr/bin/env bash
-# =============================================================================
-# benchmark.sh — fastSyncAI connection-count benchmark
-#
-# Usage:
-#   ./benchmark.sh [latency_ms]
-#
-# Examples:
-#   ./benchmark.sh           # loopback, no extra latency
-#   ./benchmark.sh 20        # simulate 20 ms RTT via tc netem (needs sudo)
-#   ./benchmark.sh 100       # simulate 100 ms RTT (WAN)
-#
-# What it does:
-#   1. Generates a 50 MB mixed test tree (small / medium / large files)
-#   2. Optionally adds RTT latency to lo using tc netem
-#   3. Runs fastsync_client with 1, 2, 4, 8, 16 connections
-#   4. Prints a formatted throughput comparison table
-# =============================================================================
-
-set -euo pipefail
-
-PORT=19099
-DATA_DIR="bench_data"
-DEST_DIR="bench_dest"
-SERVER_BIN="./fastsync_server"
-CLIENT_BIN="./fastsync_client"
-HOST="127.0.0.1"
-LATENCY_MS="${1:-0}"
-CONNECTIONS=(1 2 4 8 16)
-
-# ── Colours ──────────────────────────────────────────────────────────────────
-RED='\033[0;31m'; GREEN='\033[0;32m'; YELLOW='\033[1;33m'
-CYAN='\033[0;36m'; BOLD='\033[1m'; RESET='\033[0m'
-
-# ── Helpers ───────────────────────────────────────────────────────────────────
-die()  { echo -e "${RED}ERROR: $*${RESET}" >&2; exit 1; }
-info() { echo -e "${CYAN}▶ $*${RESET}"; }
-ok()   { echo -e "${GREEN}✓ $*${RESET}"; }
-
-# ── Sanity checks ─────────────────────────────────────────────────────────────
-[ -x "$SERVER_BIN" ] || die "Server binary not found: $SERVER_BIN — run 'make' first."
-[ -x "$CLIENT_BIN" ] || die "Client binary not found: $CLIENT_BIN — run 'make' first."
-
-cleanup() {
-    if [ "$LATENCY_MS" -gt 0 ]; then
-        sudo tc qdisc del dev lo root 2>/dev/null || true
-    fi
-    pkill -f "fastsync_server" 2>/dev/null || true
-    pkill -f "fastsync_client" 2>/dev/null || true
-    rm -rf "$DATA_DIR" "$DEST_DIR"
-}
-trap cleanup EXIT
-
-# ── Generate test data ────────────────────────────────────────────────────────
-generate_data() {
-    info "Generating test data (~50 MB mixed tree)..."
-    rm -rf "$DATA_DIR"
-    mkdir -p "$DATA_DIR/small" "$DATA_DIR/medium" "$DATA_DIR/large"
-
-    # 40 × 256 KB = 10 MB (many small files → tests queue/threading overhead)
-    for i in $(seq 1 40); do
-        dd if=/dev/urandom bs=256K count=1 of="$DATA_DIR/small/file_$i.bin" 2>/dev/null
-    done
-
-    # 10 × 1 MB = 10 MB (medium)
-    for i in $(seq 1 10); do
-        dd if=/dev/urandom bs=1M count=1 of="$DATA_DIR/medium/file_$i.bin" 2>/dev/null
-    done
-
-    # 6 × 5 MB = 30 MB (large — stresses TCP buffer sizing)
-    for i in $(seq 1 6); do
-        dd if=/dev/urandom bs=5M count=1 of="$DATA_DIR/large/file_$i.bin" 2>/dev/null
-    done
-
-    local total_files total_size
-    total_files=$(find "$DATA_DIR" -type f | wc -l)
-    total_size=$(du -sh "$DATA_DIR" | cut -f1)
-    ok "Generated $total_files files, $total_size total"
-}
-
-# ── Latency simulation (tc netem) ─────────────────────────────────────────────
-setup_latency() {
-    if [ "$LATENCY_MS" -gt 0 ]; then
-        info "Adding ${LATENCY_MS}ms RTT latency to lo via tc netem..."
-        if ! sudo -n true 2>/dev/null; then
-            echo -e "${YELLOW}⚠ sudo required for tc netem — enter password if prompted${RESET}"
-        fi
-        # Half-latency each way → full RTT = LATENCY_MS
-        local half=$(( LATENCY_MS / 2 ))
-        sudo tc qdisc del dev lo root 2>/dev/null || true
-        sudo tc qdisc add dev lo root netem delay "${half}ms" || \
-            die "tc netem failed. Install iproute2 or run without latency argument."
-        ok "Latency applied (${half}ms one-way = ${LATENCY_MS}ms RTT)"
-    fi
-}
-
-teardown_latency() {
-    if [ "$LATENCY_MS" -gt 0 ]; then
-        sudo tc qdisc del dev lo root 2>/dev/null || true
-        ok "Latency removed"
-    fi
-}
-
-# ── Run one pass and return "ms|mbs" ──────────────────────────────────────────
-run_pass() {
-    local nconn=$1
-    rm -rf "$DEST_DIR"
-
-    "$SERVER_BIN" -p "$PORT" -d "$DEST_DIR" >/dev/null 2>&1 &
-    local srv_pid=$!
-    sleep 0.15   # let server bind
-
-    local output
-    output=$("$CLIENT_BIN" -h "$HOST" -p "$PORT" -s "$DATA_DIR" -n "$nconn" 2>&1)
-
-    kill "$srv_pid" 2>/dev/null
-    wait "$srv_pid" 2>/dev/null
-    sync  # Ensure all writes are flushed to disk
-
-    # Parse the machine-readable BENCH: line
-    local ms mbs
-    ms=$(echo "$output"  | grep "^BENCH:" | grep -oP 'ms=\K[0-9.]+')
-    mbs=$(echo "$output" | grep "^BENCH:" | grep -oP 'throughput_mbs=\K[0-9.]+')
-
-    echo "${ms}|${mbs}"
-}
-
-# ── Bar chart helper (ASCII) ──────────────────────────────────────────────────
-draw_bar() {
-    local val=$1 max=$2 width=30
-    local filled
-    filled=$(LC_ALL=C awk "BEGIN{printf \"%d\", ($val * $width / ($max == 0 ? 1 : $max))}")
-    local bar=""
-    for ((i=0; i<filled; i++)); do bar+="█"; done
-    for ((i=filled; i<width; i++)); do bar+="░"; done
-    echo "$bar"
-}
-
-# ─────────────────────────────────────────────────────────────────────────────
-# MAIN
-# ─────────────────────────────────────────────────────────────────────────────
-
-echo ""
-echo -e "${BOLD}╔══════════════════════════════════════════════════════════════╗${RESET}"
-echo -e "${BOLD}║           fastSyncAI — Multi-Connection Benchmark           ║${RESET}"
-echo -e "${BOLD}╚══════════════════════════════════════════════════════════════╝${RESET}"
-echo ""
-
-if [ "$LATENCY_MS" -gt 0 ]; then
-    echo -e "  Simulated RTT latency : ${YELLOW}${LATENCY_MS} ms${RESET}"
-else
-    echo -e "  Simulated RTT latency : ${GREEN}none (raw loopback)${RESET}"
-fi
-echo -e "  Server port           : $PORT"
-echo -e "  Connection counts     : ${CONNECTIONS[*]}"
-echo ""
-
-generate_data
-setup_latency
-echo ""
-
-# Collect results
-declare -a RES_MS RES_MBS
-info "Running benchmark passes..."
-echo ""
-
-MAX_MBS="0"
-for n in "${CONNECTIONS[@]}"; do
-    echo -ne "  Testing ${BOLD}${n}${RESET} connection(s)... "
-    result=$(run_pass "$n")
-    IFS='|' read -r ms mbs <<< "$result"
-    RES_MS+=("$ms")
-    RES_MBS+=("$mbs")
-    # Track max throughput for bar chart scaling
-    if LC_ALL=C awk "BEGIN{exit !(\"$mbs\"+0 > \"$MAX_MBS\"+0)}"; then MAX_MBS="$mbs"; fi
-    echo -e "${GREEN}${mbs} MB/s${RESET} in ${ms} ms"
-done
-
-teardown_latency
-
-# ── Results table ────────────────────────────────────────────────────────────
-echo ""
-echo -e "${BOLD}Results${RESET}"
-echo ""
-echo -e "  ${BOLD}$(printf '%-11s  %-10s  %-10s  %-32s' 'Connections' 'Time (ms)' 'MB/s' 'Throughput')${RESET}"
-echo    "  $(printf '%-11s  %-10s  %-10s  %-32s' '-----------' '---------' '----' '---------')"
-
-for i in "${!CONNECTIONS[@]}"; do
-    n="${CONNECTIONS[$i]}"
-    ms="${RES_MS[$i]}"
-    mbs="${RES_MBS[$i]}"
-    bar=$(draw_bar "$mbs" "$MAX_MBS" 2>/dev/null || echo "")
-    printf "  %-11s  %-10s  %-10s  %s\n" "$n" "$ms" "$mbs" "$bar"
-done
-
-echo ""
-
-# ── Speedup analysis ─────────────────────────────────────────────────────────
-base_mbs="${RES_MBS[0]}"
-echo -e "${BOLD}Speedup vs. 1 connection${RESET}"
-echo ""
-for i in "${!CONNECTIONS[@]}"; do
-    n="${CONNECTIONS[$i]}"
-    mbs="${RES_MBS[$i]}"
-    speedup=$(LC_ALL=C awk "BEGIN{printf \"%.2f\", $mbs / ($base_mbs == 0 ? 1 : $base_mbs)}")
-    if LC_ALL=C awk "BEGIN{exit !($speedup >= 2.0)}"; then
-        color="$GREEN"
-    elif LC_ALL=C awk "BEGIN{exit !($speedup >= 1.3)}"; then
-        color="$YELLOW"
-    else
-        color="$RESET"
-    fi
-    LC_ALL=C awk -v n="$n" -v s="$speedup" -v c="$color" -v r="$RESET" \
-        'BEGIN{printf "  %2s connection(s): %s%.2fx%s\n", n, c, s+0, r}'
-done
-
-echo ""
-ok "Benchmark done."
-echo ""
diff --git a/benchmark_comprehensive.sh b/benchmark_comprehensive.sh
deleted file mode 100755
index d1a1097..0000000
--- a/benchmark_comprehensive.sh
+++ /dev/null
@@ -1,597 +0,0 @@
-#!/usr/bin/env bash
-# benchmark_comprehensive.sh — Comprehensive benchmark for fastSyncAI
-#
-# Compares fastSyncAI against rsync, rclone, unison, and other tools
-# Tests different connection counts and settings
-#
-# Usage:
-#   ./benchmark_comprehensive.sh [DATA_SIZE_MB] [RUN_COUNT] [LATENCY_MS]
-=======
-# =============================================================================
-# benchmark_comprehensive.sh — Comprehensive benchmark for fastSyncAI
-#
-# Compares fastSyncAI against rsync, rclone, unison, and other tools
-# Tests different connection counts and settings
-#
-# NOTE: When LATENCY_MS > 0, only fastSyncAI (TCP-based) experiences the network
-#       latency. rsync, rclone, unison, and cp operate locally and bypass tc netem.
-#       For fair TCP-based comparison of all tools, use benchmark_network.sh instead.
-#
-# Usage:
-#   ./benchmark_comprehensive.sh [DATA_SIZE_MB] [RUN_COUNT] [LATENCY_MS]=============================================================================
-# benchmark_comprehensive.sh — Comprehensive benchmark for fastSyncAI
-#
-# Compares fastSyncAI against rsync, rclone, unison, and other tools
-# Tests different connection counts and settings
-#
-# Usage:
-#   ./benchmark_comprehensive.sh [DATA_SIZE_MB] [RUN_COUNT] [LATENCY_MS]
-#
-# Examples:
-#   ./benchmark_comprehensive.sh          # 100 MB, 3 runs, no latency (default)
-#   ./benchmark_comprehensive.sh 500      # 500 MB, 3 runs, no latency
-#   ./benchmark_comprehensive.sh 100 5    # 100 MB, 5 runs, no latency
-#   ./benchmark_comprehensive.sh 100 1 20 # 100 MB, 1 run, 20ms RTT latency
-#   ./benchmark_comprehensive.sh 100 1 100 # 100 MB, 1 run, 100ms RTT (WAN-like)
-#
-# Requirements:
-#   - rsync (usually pre-installed)
-#   - rclone (optional, for cloud/local sync comparison)
-#   - unison (optional, for bidirectional sync comparison)
-#   - cp (for baseline comparison)
-#   - sudo (for network latency simulation via tc netem)
-# =============================================================================
-
-set -euo pipefail
-
-# ── Defaults ──────────────────────────────────────────────────────────────
-DATA_SIZE_MB=${1:-100}
-RUN_COUNT=${2:-3}
-LATENCY_MS=${3:-0}
-PORT=19299
-HOST="127.0.0.1"
-
-SERVER_BIN="./fastsync_server"
-CLIENT_BIN="./fastsync_client"
-
-# ── Directories ────────────────────────────────────────────────────────────
-TEST_DIR="bench_comprehensive_$$"
-SRC_DIR="$TEST_DIR/src"
-DST_DIR_BASE="$TEST_DIR/dst"
-
-# ── Connection counts to test for fastSyncAI ───────────────────────────────
-CONN_COUNTS=(1 2 4 8 16)
-
-# ── Colours ────────────────────────────────────────────────────────────────
-RED='\033[0;31m'; GREEN='\033[0;32m'; YELLOW='\033[1;33m'
-CYAN='\033[0;36m'; BOLD='\033[1m'; RESET='\033[0m'
-
-# ── Helpers ────────────────────────────────────────────────────────────────
-die()  { echo -e "${RED}ERROR: $*${RESET}" >&2; exit 1; }
-info() { echo -e "${CYAN}▶ $*${RESET}"; }
-ok()   { echo -e "${GREEN}✓ $*${RESET}"; }
-warn() { echo -e "${YELLOW}⚠ $*${RESET}"; }
-
-# ── Latency simulation (tc netem) ────────────────────────────────────────
-setup_latency() {
-    if [ "$LATENCY_MS" -gt 0 ]; then
-        info "Adding ${LATENCY_MS}ms RTT latency to lo via tc netem..."
-        if ! sudo -n true 2>/dev/null; then
-            echo -e "${YELLOW}⚠ sudo required for tc netem — enter password if prompted${RESET}"
-        fi
-        local half=$(( LATENCY_MS / 2 ))
-        sudo tc qdisc del dev lo root 2>/dev/null || true
-        sudo tc qdisc add dev lo root netem delay "${half}ms" || \
-            die "tc netem failed. Install iproute2 or run without latency argument."
-        ok "Latency applied (${half}ms one-way = ${LATENCY_MS}ms RTT)"
-    fi
-}
-
-cleanup_latency() {
-    if [ "$LATENCY_MS" -gt 0 ]; then
-        sudo tc qdisc del dev lo root 2>/dev/null || true
-        ok "Latency removed"
-    fi
-}
-
-# ── Sanity checks ──────────────────────────────────────────────────────────
-[ -x "$SERVER_BIN" ] || die "Server binary not found: $SERVER_BIN — run 'make' first."
-[ -x "$CLIENT_BIN" ] || die "Client binary not found: $CLIENT_BIN — run 'make' first."
-command -v rsync >/dev/null 2>&1 || die "rsync not found. Install rsync first."
-
-# Check for optional tools
-HAS_RCLONE=$(command -v rclone >/dev/null 2>&1 && echo "1" || echo "0")
-HAS_UNISON=$(command -v unison >/dev/null 2>&1 && echo "1" || echo "0")
-HAS_PV=$(command -v pv >/dev/null 2>&1 && echo "1" || echo "0")
-
-cleanup() {
-    cleanup_latency
-    rm -rf "$TEST_DIR"
-}
-trap cleanup EXIT
-
-# ── Generate test data ──────────────────────────────────────────────────────
-generate_test_data() {
-    info "Generating ~${DATA_SIZE_MB}MB test data..."
-    rm -rf "$TEST_DIR"
-    mkdir -p "$SRC_DIR/small" "$SRC_DIR/medium" "$SRC_DIR/large"
-
-    # Small files: many files to test overhead (~25% of total)
-    local small_count=$(( (DATA_SIZE_MB * 1048576 / 4) / 262144 ))
-    [ "$small_count" -lt 10 ] && small_count=10
-    [ "$small_count" -gt 100 ] && small_count=100
-    info "  Creating $small_count small files (256KB each)..."
-    for i in $(seq 1 $small_count); do
-        dd if=/dev/urandom bs=256K count=1 of="$SRC_DIR/small/file_$i.bin" 2>/dev/null
-    done
-
-    # Medium files: ~50% of total
-    local medium_count=$(( (DATA_SIZE_MB * 1048576 / 2) / 1048576 ))
-    [ "$medium_count" -lt 5 ] && medium_count=5
-    [ "$medium_count" -gt 20 ] && medium_count=20
-    info "  Creating $medium_count medium files (1MB each)..."
-    for i in $(seq 1 $medium_count); do
-        dd if=/dev/urandom bs=1M count=1 of="$SRC_DIR/medium/file_$i.bin" 2>/dev/null
-    done
-
-    # Large files: remaining ~25%
-    local large_size=$(( DATA_SIZE_MB - (small_count * 256 / 1024) - medium_count ))
-    [ "$large_size" -lt 5 ] && large_size=5
-    local large_count=3
-    [ "$large_size" -lt 10 ] && large_count=1
-    info "  Creating $large_count large files (~${large_size}MB total)..."
-    for i in $(seq 1 $large_count); do
-        local this_size=$(( large_size * 1048576 / large_count / 1048576 ))
-        [ "$this_size" -lt 1 ] && this_size=1
-        dd if=/dev/urandom bs=1M count=$this_size of="$SRC_DIR/large/file_$i.bin" 2>/dev/null
-    done
-
-    local total_files total_size
-    total_files=$(find "$SRC_DIR" -type f | wc -l)
-    total_size=$(du -sh "$SRC_DIR" | cut -f1)
-    ok "Generated $total_files files, $total_size total in $SRC_DIR"
-}
-
-# ── Verification helper ────────────────────────────────────────────────────
-verify_sync() {
-    local src_dir=$1
-    local dst_dir=$2
-    local src_count=$(find "$src_dir" -type f | wc -l)
-    local dst_count=$(find "$dst_dir" -type f | wc -l)
-    [ "$src_count" -ne "$dst_count" ] && return 1
-    local src_size=$(find "$src_dir" -type f -exec stat -c %s {} \; | awk '{sum+=$1} END {print sum}')
-    local dst_size=$(find "$dst_dir" -type f -exec stat -c %s {} \; | awk '{sum+=$1} END {print sum}')
-    [ "$src_size" -ne "$dst_size" ] && return 1
-    return 0
-}
-
-# ── Draw bar chart ────────────────────────────────────────────────────────
-draw_bar() {
-    local val=$1 max=$2 width=30
-    if [ "$max" -eq 0 ]; then max=1; fi
-    local filled
-    filled=$(LC_ALL=C awk "BEGIN{printf \"%d\", ($val * $width / $max)}")
-    [ "$filled" -gt "$width" ] && filled=$width
-    local bar=""
-    for ((i=0; i<filled; i++)); do bar+="█"; done
-    for ((i=filled; i<width; i++)); do bar+="░"; done
-    echo "$bar"
-}
-
-# ── Run fastSyncAI with specific connection count ──────────────────────────
-run_fastsync() {
-    local nconn=$1
-    local dst_dir="$DST_DIR_BASE/fastsync_${nconn}"
-    local server_port=$((PORT + nconn))  # Unique port per test to avoid conflicts
-    rm -rf "$dst_dir"
-    mkdir -p "$dst_dir"
-
-    "$SERVER_BIN" -p "$server_port" -d "$dst_dir" > /dev/null 2>&1 &
-    local srv_pid=$!
-    sleep 0.2
-
-    local output
-    output=$(timeout 120 "$CLIENT_BIN" -h "$HOST" -p "$server_port" -s "$SRC_DIR" -n "$nconn" 2>&1) || true
-
-    # Wait for client to fully finish sending DONE and server to process all data
-    # With network latency, 1 connection needs more time
-    local wait_time=3
-    if [ "$LATENCY_MS" -gt 0 ] && [ "$nconn" -eq 1 ]; then
-        wait_time=$(( 3 + LATENCY_MS / 10 + 2 ))
-    fi
-    sleep $wait_time
-    # Signal server to exit (it will finish current transfers and die)
-    kill "$srv_pid" 2>/dev/null || true
-    timeout 10 wait "$srv_pid" 2>/dev/null || true
-    # Force sync to ensure all disk writes are complete before verification
-    sync
-
-    # Extract from BENCH line
-    local ms mbs
-    ms=$(echo "$output" | grep "^BENCH:" | grep -oP 'ms=\K[0-9.]+' || echo "0")
-    mbs=$(echo "$output" | grep "^BENCH:" | grep -oP 'throughput_mbs=\K[0-9.]+' || echo "0")
-
-    if verify_sync "$SRC_DIR" "$dst_dir"; then
-        echo "${ms}|${mbs}|1"
-    else
-        echo "${ms}|${mbs}|0"
-    fi
-
-    rm -rf "$dst_dir"
-}
-
-# ── Run rsync ───────────────────────────────────────────────────────────────
-run_rsync() {
-    local dst_dir="$DST_DIR_BASE/rsync"
-    rm -rf "$dst_dir"
-    mkdir -p "$dst_dir"
-
-    local start end
-    start=$(date +%s%N)
-    rsync -a "$SRC_DIR/" "$dst_dir/" > /dev/null 2>&1
-    end=$(date +%s%N)
-
-    local elapsed_ms=$(( (end - start) / 1000000 ))
-    local total_bytes
-    total_bytes=$(find "$SRC_DIR" -type f -exec stat -c %s {} \; | awk '{sum+=$1} END {print sum}')
-    local mbs=0
-    if [ "$elapsed_ms" -gt 0 ]; then
-        mbs=$(awk "BEGIN {printf \"%.2f\", $total_bytes / 1048576.0 / ($elapsed_ms / 1000.0)}")
-    fi
-
-    if verify_sync "$SRC_DIR" "$dst_dir"; then
-        echo "${elapsed_ms}|${mbs}|1"
-    else
-        echo "${elapsed_ms}|${mbs}|0"
-    fi
-
-    rm -rf "$dst_dir"
-}
-
-# ── Run rsync with compression ──────────────────────────────────────────────
-run_rsync_compress() {
-    local dst_dir="$DST_DIR_BASE/rsync_compress"
-    rm -rf "$dst_dir"
-    mkdir -p "$dst_dir"
-
-    local start end
-    start=$(date +%s%N)
-    rsync -a --compress "$SRC_DIR/" "$dst_dir/" > /dev/null 2>&1
-    end=$(date +%s%N)
-
-    local elapsed_ms=$(( (end - start) / 1000000 ))
-    local total_bytes
-    total_bytes=$(find "$SRC_DIR" -type f -exec stat -c %s {} \; | awk '{sum+=$1} END {print sum}')
-    local mbs=0
-    if [ "$elapsed_ms" -gt 0 ]; then
-        mbs=$(awk "BEGIN {printf \"%.2f\", $total_bytes / 1048576.0 / ($elapsed_ms / 1000.0)}")
-    fi
-
-    if verify_sync "$SRC_DIR" "$dst_dir"; then
-        echo "${elapsed_ms}|${mbs}|1"
-    else
-        echo "${elapsed_ms}|${mbs}|0"
-    fi
-
-    rm -rf "$dst_dir"
-}
-
-# ── Run rclone (if available) ─────────────────────────────────────────────
-run_rclone() {
-    if [ "$HAS_RCLONE" -eq 0 ]; then
-        echo "0|0|0"  # Skip - not installed
-        return
-    fi
-
-    local dst_dir="$DST_DIR_BASE/rclone"
-    rm -rf "$dst_dir"
-    mkdir -p "$dst_dir"
-
-    local start end
-    start=$(date +%s%N)
-    rclone copy "$SRC_DIR" "$dst_dir" -q --transfers 4 --checkers 8 2>/dev/null || true
-    end=$(date +%s%N)
-
-    local elapsed_ms=$(( (end - start) / 1000000 ))
-    local total_bytes
-    total_bytes=$(find "$SRC_DIR" -type f -exec stat -c %s {} \; | awk '{sum+=$1} END {print sum}')
-    local mbs=0
-    if [ "$elapsed_ms" -gt 0 ]; then
-        mbs=$(awk "BEGIN {printf \"%.2f\", $total_bytes / 1048576.0 / ($elapsed_ms / 1000.0)}")
-    fi
-
-    if verify_sync "$SRC_DIR" "$dst_dir"; then
-        echo "${elapsed_ms}|${mbs}|1"
-    else
-        echo "${elapsed_ms}|${mbs}|0"
-    fi
-
-    rm -rf "$dst_dir"
-}
-
-# ── Run Unison (if available) ─────────────────────────────────────────────
-run_unison() {
-    if [ "$HAS_UNISON" -eq 0 ]; then
-        echo "0|0|0"  # Skip - not installed
-        return
-    fi
-
-    local dst_dir="$DST_DIR_BASE/unison"
-    rm -rf "$dst_dir"
-    mkdir -p "$dst_dir"
-
-    local start end
-    start=$(date +%s%N)
-    unison "$SRC_DIR" "$dst_dir" -batch -silent -noshutdown 2>/dev/null || true
-    end=$(date +%s%N)
-
-    local elapsed_ms=$(( (end - start) / 1000000 ))
-    local total_bytes
-    total_bytes=$(find "$SRC_DIR" -type f -exec stat -c %s {} \; | awk '{sum+=$1} END {print sum}')
-    local mbs=0
-    if [ "$elapsed_ms" -gt 0 ]; then
-        mbs=$(awk "BEGIN {printf \"%.2f\", $total_bytes / 1048576.0 / ($elapsed_ms / 1000.0)}")
-    fi
-
-    if verify_sync "$SRC_DIR" "$dst_dir"; then
-        echo "${elapsed_ms}|${mbs}|1"
-    else
-        echo "${elapsed_ms}|${mbs}|0"
-    fi
-
-    rm -rf "$dst_dir"
-}
-
-# ── Run cp (baseline) ─────────────────────────────────────────────────────
-run_cp() {
-    local dst_dir="$DST_DIR_BASE/cp"
-    rm -rf "$dst_dir"
-    mkdir -p "$dst_dir"
-
-    local start end
-    start=$(date +%s%N)
-    cp -r "$SRC_DIR"/* "$dst_dir/" 2>/dev/null
-    end=$(date +%s%N)
-
-    local elapsed_ms=$(( (end - start) / 1000000 ))
-    local total_bytes
-    total_bytes=$(find "$SRC_DIR" -type f -exec stat -c %s {} \; | awk '{sum+=$1} END {print sum}')
-    local mbs=0
-    if [ "$elapsed_ms" -gt 0 ]; then
-        mbs=$(awk "BEGIN {printf \"%.2f\", $total_bytes / 1048576.0 / ($elapsed_ms / 1000.0)}")
-    fi
-
-    if verify_sync "$SRC_DIR" "$dst_dir"; then
-        echo "${elapsed_ms}|${mbs}|1"
-    else
-        echo "${elapsed_ms}|${mbs}|0"
-    fi
-
-    rm -rf "$dst_dir"
-}
-
-# ────────────────────────────────────────────────────────────────────────────
-# MAIN
-# ────────────────────────────────────────────────────────────────────────────
-
-echo ""
-echo -e "${BOLD}╔════════════════════════════════════════════════════════════════════════╗${RESET}"
-echo -e "${BOLD}║     fastSyncAI — Comprehensive Performance Benchmark                 ║${RESET}"
-echo -e "${BOLD}╚════════════════════════════════════════════════════════════════════════╝${RESET}"
-echo ""
-echo -e "  Data size     : ${CYAN}${DATA_SIZE_MB} MB${RESET}"
-echo -e "  Runs per test : ${CYAN}${RUN_COUNT}${RESET}"
-echo -e "  Latency       : ${CYAN}${LATENCY_MS}ms RTT${RESET}"
-echo -e "  Tools tested  : fastSyncAI (${#CONN_COUNTS[@]} connection configs), rsync, rsync+compress$( [ "$HAS_RCLONE" -eq 1 ] && echo ", rclone" || echo "")$( [ "$HAS_UNISON" -eq 1 ] && echo ", unison" || echo "")${RESET}"
-echo ""
-
-# Initialize result arrays
-declare -a FS_RESULTS RS_RESULTS RSC_RESULTS RCLONE_RESULTS UNISON_RESULTS CP_RESULTS
-declare -a FS_LABELS=("fastSyncAI (1 conn)" "fastSyncAI (2 conn)" "fastSyncAI (4 conn)" "fastSyncAI (8 conn)" "fastSyncAI (16 conn)")
-
-# Setup latency if requested
-if [ "$LATENCY_MS" -gt 0 ]; then
-    setup_latency
-    echo ""
-fi
-
-info "Generating test data..."
-generate_test_data
-echo ""
-
-# ── Test fastSyncAI with different connection counts ───────────────────────
-info "Testing fastSyncAI with different connection counts..."
-for nconn in "${CONN_COUNTS[@]}"; do
-    echo -n "  Testing ${nconn} connections... "
-    result=$(run_fastsync $nconn)
-    IFS='|' read -r ms mbs verified <<< "$result"
-    FS_RESULTS+=("$ms|$mbs|$verified")
-    if [ "$verified" -eq 1 ]; then
-        ok "${mbs} MB/s (${ms}ms)"
-    else
-        warn "${mbs} MB/s (${ms}ms) - VERIFICATION FAILED"
-    fi
-done
-echo ""
-
-# ── Test rsync ─────────────────────────────────────────────────────────────
-echo -n "  Testing rsync... "
-result=$(run_rsync)
-IFS='|' read -r ms mbs verified <<< "$result"
-RS_RESULTS=("$ms|$mbs|$verified")
-if [ "$verified" -eq 1 ]; then
-    ok "${mbs} MB/s (${ms}ms)"
-else
-    warn "${mbs} MB/s (${ms}ms) - VERIFICATION FAILED"
-fi
-
-# ── Test rsync with compression ────────────────────────────────────────────
-echo -n "  Testing rsync + compress... "
-result=$(run_rsync_compress)
-IFS='|' read -r ms mbs verified <<< "$result"
-RSC_RESULTS=("$ms|$mbs|$verified")
-if [ "$verified" -eq 1 ]; then
-    ok "${mbs} MB/s (${ms}ms)"
-else
-    warn "${mbs} MB/s (${ms}ms) - VERIFICATION FAILED"
-fi
-
-# ── Test rclone (if available) ─────────────────────────────────────────────
-if [ "$HAS_RCLONE" -eq 1 ]; then
-    echo -n "  Testing rclone... "
-    result=$(run_rclone)
-    IFS='|' read -r ms mbs verified <<< "$result"
-    RCLONE_RESULTS=("$ms|$mbs|$verified")
-    if [ "$verified" -eq 1 ]; then
-        ok "${mbs} MB/s (${ms}ms)"
-    else
-        warn "${mbs} MB/s (${ms}ms) - VERIFICATION FAILED"
-    fi
-else
-    warn "rclone not installed - skipping"
-fi
-
-# ── Test Unison (if available) ─────────────────────────────────────────────
-if [ "$HAS_UNISON" -eq 1 ]; then
-    echo -n "  Testing unison... "
-    result=$(run_unison)
-    IFS='|' read -r ms mbs verified <<< "$result"
-    UNISON_RESULTS=("$ms|$mbs|$verified")
-    if [ "$verified" -eq 1 ]; then
-        ok "${mbs} MB/s (${ms}ms)"
-    else
-        warn "${mbs} MB/s (${ms}ms) - VERIFICATION FAILED"
-    fi
-else
-    warn "unison not installed - skipping"
-fi
-
-# ── Test cp (baseline) ─────────────────────────────────────────────────────
-echo -n "  Testing cp (baseline)... "
-result=$(run_cp)
-IFS='|' read -r ms mbs verified <<< "$result"
-CP_RESULTS=("$ms|$mbs|$verified")
-if [ "$verified" -eq 1 ]; then
-    ok "${mbs} MB/s (${ms}ms)"
-else
-    warn "${mbs} MB/s (${ms}ms) - VERIFICATION FAILED"
-fi
-
-echo ""
-echo -e "${BOLD}════════════════════════════════════════════════════════════════════════╗${RESET}"
-echo -e "${BOLD}                      CONNECTION COUNT COMPARISON${RESET}"
-echo -e "${BOLD}════════════════════════════════════════════════════════════════════════╝${RESET}"
-echo ""
-
-# Find max MB/s for scaling
-calc_max_mbs() {
-    local max=0
-    for res in "${FS_RESULTS[@]}" "${RS_RESULTS[@]}" "${RSC_RESULTS[@]}" "${RCLONE_RESULTS[@]}" "${UNISON_RESULTS[@]}" "${CP_RESULTS[@]}"; do
-        local mbs=$(echo "$res" | cut -d'|' -f2)
-        local int_mbs=$(echo "$mbs" | awk '{printf "%d", $1+0}')
-        [ "$int_mbs" -gt "$max" ] && max=$int_mbs
-    done
-    echo $max
-}
-
-MAX_MBS=$(calc_max_mbs)
-[ "$MAX_MBS" -eq 0 ] && MAX_MBS=100
-
-printf "  %-25s  %-10s  %-10s  %s\n" "Tool" "Time (ms)" "MB/s" "Throughput"
-printf "  %-25s  %-10s  %-10s  %s\n" "-----------------------" "----------" "----------" "-----------"
-
-# Print fastSyncAI results with different connection counts
-for i in "${!FS_RESULTS[@]}"; do
-    IFS='|' read -r ms mbs verified <<< "${FS_RESULTS[$i]}"
-    bar=$(draw_bar "$mbs" "$MAX_MBS")
-    verified_str=$([ "$verified" -eq 1 ] && echo "✓" || echo "✗")
-    printf "  %-25s  %-10s  %-10s  %s %s\n" "${FS_LABELS[$i]}" "$ms" "$mbs" "$bar" "$verified_str"
-done
-
-# Print other tool results
-printf "\n  %-25s  %-10s  %-10s  %s\n" "Other Tools:" "" "" ""
-printf "  %-25s  %-10s  %-10s  %s\n" "-----------------------" "----------" "----------" "-----------"
-
-# rsync
-IFS='|' read -r ms mbs verified <<< "${RS_RESULTS[0]}"
-bar=$(draw_bar "$mbs" "$MAX_MBS")
-verified_str=$([ "$verified" -eq 1 ] && echo "✓" || echo "✗")
-printf "  %-25s  %-10s  %-10s  %s %s\n" "rsync" "$ms" "$mbs" "$bar" "$verified_str"
-
-# rsync + compress
-IFS='|' read -r ms mbs verified <<< "${RSC_RESULTS[0]}"
-bar=$(draw_bar "$mbs" "$MAX_MBS")
-verified_str=$([ "$verified" -eq 1 ] && echo "✓" || echo "✗")
-printf "  %-25s  %-10s  %-10s  %s %s\n" "rsync + compress" "$ms" "$mbs" "$bar" "$verified_str"
-
-# rclone
-if [ "${RCLONE_RESULTS[0]}" != "0|0|0" ]; then
-    IFS='|' read -r ms mbs verified <<< "${RCLONE_RESULTS[0]}"
-    bar=$(draw_bar "$mbs" "$MAX_MBS")
-    verified_str=$([ "$verified" -eq 1 ] && echo "✓" || echo "✗")
-    printf "  %-25s  %-10s  %-10s  %s %s\n" "rclone" "$ms" "$mbs" "$bar" "$verified_str"
-fi
-
-# unison
-if [ "${UNISON_RESULTS[0]}" != "0|0|0" ]; then
-    IFS='|' read -r ms mbs verified <<< "${UNISON_RESULTS[0]}"
-    bar=$(draw_bar "$mbs" "$MAX_MBS")
-    verified_str=$([ "$verified" -eq 1 ] && echo "✓" || echo "✗")
-    printf "  %-25s  %-10s  %-10s  %s %s\n" "unison" "$ms" "$mbs" "$bar" "$verified_str"
-fi
-
-# cp
-IFS='|' read -r ms mbs verified <<< "${CP_RESULTS[0]}"
-bar=$(draw_bar "$mbs" "$MAX_MBS")
-verified_str=$([ "$verified" -eq 1 ] && echo "✓" || echo "✗")
-printf "  %-25s  %-10s  %-10s  %s %s\n" "cp (baseline)" "$ms" "$mbs" "$bar" "$verified_str"
-
-echo ""
-echo -e "${BOLD}════════════════════════════════════════════════════════════════════════╗${RESET}"
-echo -e "${BOLD}                         SPEEDUP ANALYSIS${RESET}"
-echo -e "${BOLD}════════════════════════════════════════════════════════════════════════╝${RESET}"
-echo ""
-
-# Calculate speedups vs rsync
-IFS='|' read -r rs_ms rs_mbs rs_verified <<< "${RS_RESULTS[0]}"
-if [ "$rs_mbs" != "0" ]; then
-    echo "  Speedup vs rsync (higher is better):"
-    echo ""
-    for i in "${!FS_RESULTS[@]}"; do
-        IFS='|' read -r fs_ms fs_mbs fs_verified <<< "${FS_RESULTS[$i]}"
-        if [ "$fs_mbs" != "0" ]; then
-            speedup=$(awk "BEGIN {printf \"%.2f\", $fs_mbs / $rs_mbs}")
-            # Check if speedup >= 2.0 using bc for floating point comparison
-            if [ "$(awk "BEGIN {print ($speedup >= 2.0) ? 1 : 0}")" = "1" ]; then
-                color="$GREEN"
-            elif [ "$(awk "BEGIN {print ($speedup >= 1.3) ? 1 : 0}")" = "1" ]; then
-                color="$YELLOW"
-            else
-                color="$RESET"
-            fi
-            printf "    %-25s: %s%.2fx faster%s\n" "${FS_LABELS[$i]}" "$color" "$speedup" "$RESET"
-        fi
-    done
-    echo ""
-fi
-
-# Best connection count
-best_idx=0
-best_mbs=0
-for i in "${!FS_RESULTS[@]}"; do
-    IFS='|' read -r ms mbs verified <<< "${FS_RESULTS[$i]}"
-    mbs_int=$(echo "$mbs" | awk '{printf "%d", $1+0}')
-    if [ "$mbs_int" -gt "$best_mbs" ]; then
-        best_mbs=$mbs_int
-        best_idx=$i
-    fi
-done
-
-ok "Best fastSyncAI config: ${FS_LABELS[$best_idx]} (${best_mbs} MB/s)"
-
-echo ""
-echo -e "${BOLD}════════════════════════════════════════════════════════════════════════╗${RESET}"
-echo -e "${BOLD}                        COMPLETE${RESET}"
-echo -e "${BOLD}════════════════════════════════════════════════════════════════════════╝${RESET}"
-echo ""
-ok "Benchmark complete!"