Fix: Restore compare_rsync.sh from corrupted merge, add benchmark_network.sh
- Fix compare_rsync.sh: Remove merge conflict markers from commit 43701a4
and properly integrate LAN/WAN latency simulation (--lan, --wan presets)
- Add benchmark_network.sh: New dedicated network condition benchmark with:
- LAN scenario (10ms RTT)
- WAN scenario (100ms RTT)
- WAN with packet loss (1%, 5%, 10%)
- WAN with jitter (100ms +/-50ms)
- Custom latency support
- Tests connection counts 1, 2, 4, 8, 16 under each scenario
- ASCII bar chart visualization
- Identifies best connection count per scenario
Generated by Mistral Vibe.
Co-Authored-By: Mistral Vibe <vibe@mistral.ai>
This commit is contained in:
taptap
Executable
+369
@@ -0,0 +1,369 @@
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#!/usr/bin/env bash
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# =============================================================================
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# benchmark_network.sh — Network Condition Benchmark for fastSyncAI
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#
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# Tests fastSyncAI performance under various realistic network conditions:
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# - LAN (low latency, high bandwidth)
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# - WAN (high latency, moderate bandwidth)
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# - WAN with packet loss
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# - WAN with jitter
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#
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# Usage:
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# ./benchmark_network.sh [SCENARIO] [DATA_SIZE_MB] [RUN_COUNT]
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#
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# Scenarios:
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# --lan : 10ms RTT, no loss (typical LAN)
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# --wan : 100ms RTT, no loss (typical WAN)
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# --wan-loss-1 : 100ms RTT, 1% packet loss
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# --wan-loss-5 : 100ms RTT, 5% packet loss
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# --wan-jitter : 100ms RTT, +/-50ms jitter
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# --custom LAT_ms : Custom latency (e.g., --custom 50 for 50ms RTT)
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#
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# Examples:
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# ./benchmark_network.sh --lan # LAN test, 100MB, 3 runs
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# ./benchmark_network.sh --wan 200 1 # WAN test, 200MB, 1 run
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# ./benchmark_network.sh --wan-loss-1 50 # WAN with 1% loss, 50MB, 3 runs
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# ./benchmark_network.sh --wan-jitter 100 5 # WAN with jitter, 100MB, 5 runs
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# ./benchmark_network.sh --custom 50 100 3 # Custom 50ms RTT, 100MB, 3 runs
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# =============================================================================
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set -euo pipefail
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# ── Defaults ──────────────────────────────────────────────────────────────
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DATA_SIZE_MB=${2:-100}
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RUN_COUNT=${3:-3}
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# Network scenario configuration
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SCENARIO="${1:---lan}"
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# ── Parse scenario ────────────────────────────────────────────────────────
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LATENCY_MS=0
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PACKET_LOSS="0%"
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JITTER_MS="0"
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BANDWIDTH_MBPS="0" # 0 = unlimited
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case "$SCENARIO" in
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--lan)
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LATENCY_MS=10
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SCENARIO_NAME="LAN (10ms RTT)"
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;;
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--wan)
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LATENCY_MS=100
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SCENARIO_NAME="WAN (100ms RTT)"
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;;
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--wan-loss-1)
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LATENCY_MS=100
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PACKET_LOSS="1%"
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SCENARIO_NAME="WAN with 1% loss (100ms RTT)"
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;;
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--wan-loss-5)
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LATENCY_MS=100
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PACKET_LOSS="5%"
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SCENARIO_NAME="WAN with 5% loss (100ms RTT)"
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;;
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--wan-loss-10)
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LATENCY_MS=100
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PACKET_LOSS="10%"
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SCENARIO_NAME="WAN with 10% loss (100ms RTT)"
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;;
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--wan-jitter)
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LATENCY_MS=100
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JITTER_MS=50
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SCENARIO_NAME="WAN with jitter (100ms +/-50ms RTT)"
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;;
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--custom)
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if [ -n "${2:-}" ] && [[ "${2}" =~ ^[0-9]+$ ]]; then
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LATENCY_MS="$2"
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DATA_SIZE_MB=${3:-100}
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RUN_COUNT=${4:-3}
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SCENARIO_NAME="Custom (${LATENCY_MS}ms RTT)"
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else
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echo "ERROR: --custom requires latency value in ms"
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echo "Usage: ./benchmark_network.sh --custom LATENCY_MS [DATA_SIZE_MB] [RUN_COUNT]"
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exit 1
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fi
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;;
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*)
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echo "ERROR: Unknown scenario '$SCENARIO'"
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echo "Available scenarios: --lan, --wan, --wan-loss-1, --wan-loss-5, --wan-loss-10, --wan-jitter, --custom"
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exit 1
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;;
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esac
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PORT=19399
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HOST="127.0.0.1"
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SERVER_BIN="./fastsync_server"
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CLIENT_BIN="./fastsync_client"
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# ── Directories ────────────────────────────────────────────────────────────
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TEST_DIR="network_bench_$$"
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SRC_DIR="$TEST_DIR/src"
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DST_DIR="$TEST_DIR/dst"
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# ── Colours ────────────────────────────────────────────────────────────────
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RED='\033[0;31m'; GREEN='\033[0;32m'; YELLOW='\033[1;33m'
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CYAN='\033[0;36m'; BOLD='\033[1m'; RESET='\033[0m'
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# ── Helpers ────────────────────────────────────────────────────────────────
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die() { echo -e "${RED}ERROR: $*${RESET}" >&2; exit 1; }
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info() { echo -e "${CYAN}▶ $*${RESET}"; }
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ok() { echo -e "${GREEN}✓ $*${RESET}"; }
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warn() { echo -e "${YELLOW}⚠ $*${RESET}"; }
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# ── Network simulation (tc netem) ────────────────────────────────────────
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setup_network() {
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info "Setting up network simulation: ${SCENARIO_NAME}..."
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if ! sudo -n true 2>/dev/null; then
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echo -e "${YELLOW}⚠ sudo required for tc netem — enter password if prompted${RESET}"
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fi
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# Clean existing qdisc
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sudo tc qdisc del dev lo root 2>/dev/null || true
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# Build netem command
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local netem_cmd="delay ${LATENCY_MS}ms"
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if [ "$JITTER_MS" -gt 0 ]; then
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netem_cmd="$netem_cmd ${JITTER_MS}ms"
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fi
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if [ "$PACKET_LOSS" != "0%" ]; then
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netem_cmd="$netem_cmd loss ${PACKET_LOSS}"
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fi
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# Apply network conditions
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sudo tc qdisc add dev lo root netem $netem_cmd || \
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die "tc netem failed. Install iproute2 or check parameters."
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ok "Network simulation active: latency=${LATENCY_MS}ms, loss=${PACKET_LOSS}, jitter=±${JITTER_MS}ms"
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}
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cleanup_network() {
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sudo tc qdisc del dev lo root 2>/dev/null || true
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ok "Network simulation removed"
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}
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# ── Sanity checks ──────────────────────────────────────────────────────────
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[ -x "$SERVER_BIN" ] || die "Server binary not found: $SERVER_BIN — run 'make' first."
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[ -x "$CLIENT_BIN" ] || die "Client binary not found: $CLIENT_BIN — run 'make' first."
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cleanup() {
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cleanup_network
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pkill -f "fastsync_server" 2>/dev/null || true
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pkill -f "fastsync_client" 2>/dev/null || true
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rm -rf "$TEST_DIR"
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}
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trap cleanup EXIT
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# ── Generate test data ──────────────────────────────────────────────────────
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generate_test_data() {
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info "Generating ~${DATA_SIZE_MB}MB test data..."
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rm -rf "$TEST_DIR"
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mkdir -p "$SRC_DIR/small" "$SRC_DIR/medium" "$SRC_DIR/large"
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# Small files: many small files to test overhead (~25% of total)
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local small_count=$(( (DATA_SIZE_MB * 1048576 / 4) / 262144 ))
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[ "$small_count" -lt 10 ] && small_count=10
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[ "$small_count" -gt 100 ] && small_count=100
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info " Creating $small_count small files (256KB each)..."
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for i in $(seq 1 $small_count); do
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dd if=/dev/urandom bs=256K count=1 of="$SRC_DIR/small/file_$i.bin" 2>/dev/null
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done
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# Medium files: 1MB each (~50% of total)
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local medium_count=$(( (DATA_SIZE_MB * 1048576 / 2) / 1048576 ))
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[ "$medium_count" -lt 5 ] && medium_count=5
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[ "$medium_count" -gt 20 ] && medium_count=20
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info " Creating $medium_count medium files (1MB each)..."
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for i in $(seq 1 $medium_count); do
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dd if=/dev/urandom bs=1M count=1 of="$SRC_DIR/medium/file_$i.bin" 2>/dev/null
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done
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# Large files: remaining ~25%
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local large_size=$(( DATA_SIZE_MB - (small_count * 256 / 1024) - medium_count ))
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[ "$large_size" -lt 5 ] && large_size=5
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local large_count=3
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[ "$large_size" -lt 10 ] && large_count=1
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info " Creating $large_count large files (~${large_size}MB total)..."
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for i in $(seq 1 $large_count); do
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local this_size=$(( large_size * 1048576 / large_count / 1048576 ))
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[ "$this_size" -lt 1 ] && this_size=1
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dd if=/dev/urandom bs=1M count=$this_size of="$SRC_DIR/large/file_$i.bin" 2>/dev/null
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done
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local total_files total_size
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total_files=$(find "$SRC_DIR" -type f | wc -l)
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total_size=$(du -sh "$SRC_DIR" | cut -f1)
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ok "Generated $total_files files, $total_size total"
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}
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# ── Verify sync ────────────────────────────────────────────────────────────
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verify_sync() {
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local src_dir=$1
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local dst_dir=$2
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local src_count=$(find "$src_dir" -type f | wc -l)
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local dst_count=$(find "$dst_dir" -type f | wc -l)
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[ "$src_count" -ne "$dst_count" ] && return 1
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local src_size=$(find "$src_dir" -type f -exec stat -c %s {} \; | awk '{sum+=$1} END {print sum}')
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local dst_size=$(find "$dst_dir" -type f -exec stat -c %s {} \; | awk '{sum+=$1} END {print sum}')
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[ "$src_size" -ne "$dst_size" ] && return 1
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return 0
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}
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# ── Run single test with connection count ──────────────────────────────────
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run_test() {
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local nconn=$1
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local dst_dir="$DST_DIR/fastsync_${nconn}"
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local server_port=$((PORT + nconn))
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rm -rf "$dst_dir"
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mkdir -p "$dst_dir"
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# Start server
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"$SERVER_BIN" -p "$server_port" -d "$dst_dir" > /dev/null 2>&1 &
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local srv_pid=$!
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sleep 0.2
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# Run client
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local client_output
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client_output=$(timeout 300 "$CLIENT_BIN" -h "$HOST" -p "$server_port" -s "$SRC_DIR" -n "$nconn" 2>&1) || true
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# Wait for completion
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sleep 3
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kill "$srv_pid" 2>/dev/null || true
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wait "$srv_pid" 2>/dev/null || true
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sync
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# Extract results
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local ms mbs
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ms=$(echo "$client_output" | grep "^BENCH:" | grep -oP 'ms=\K[0-9.]+' || echo "0")
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mbs=$(echo "$client_output" | grep "^BENCH:" | grep -oP 'throughput_mbs=\K[0-9.]+' || echo "0")
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local verified=1
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if ! verify_sync "$SRC_DIR" "$dst_dir"; then
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verified=0
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fi
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echo "${ms}|${mbs}|${verified}"
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# Cleanup
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rm -rf "$dst_dir"
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}
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# ── Bar chart helper ────────────────────────────────────────────────────────
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draw_bar() {
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local val=$1
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local max=$2
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local width=30
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[ "$max" -eq 0 ] && max=1
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local filled
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filled=$(LC_ALL=C awk "BEGIN{printf \"%d\", ($val * $width / $max)}")
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[ "$filled" -gt "$width" ] && filled=$width
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local bar=""
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for ((i=0; i<filled; i++)); do bar+="█"; done
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for ((i=filled; i<width; i++)); do bar+="░"; done
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echo "$bar"
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}
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# ────────────────────────────────────────────────────────────────────────────
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# MAIN
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# ────────────────────────────────────────────────────────────────────────────
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echo ""
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echo -e "${BOLD}╔═══════════════════════════════════════════════════════════════════════════╗${RESET}"
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echo -e "${BOLD}║ fastSyncAI — Network Condition Benchmark${RESET}"
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echo -e "${BOLD}╚═══════════════════════════════════════════════════════════════════════════╝${RESET}"
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echo ""
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echo -e " Scenario : ${CYAN}${SCENARIO_NAME}${RESET}"
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echo -e " Data size : ${CYAN}${DATA_SIZE_MB} MB${RESET}"
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echo -e " Runs per test : ${CYAN}${RUN_COUNT}${RESET}"
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echo -e " Latency : ${CYAN}${LATENCY_MS}ms RTT${RESET}"
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echo -e " Packet loss : ${CYAN}${PACKET_LOSS}${RESET}"
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echo -e " Jitter : ${CYAN}±${JITTER_MS}ms${RESET}"
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echo ""
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# Setup network conditions
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setup_network
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echo ""
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# Connection counts to test
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CONN_COUNTS=(1 2 4 8 16)
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# Initialize results
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declare -a FS_RESULTS
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FS_LABELS=("fastSyncAI (1 conn)" "fastSyncAI (2 conn)" "fastSyncAI (4 conn)" "fastSyncAI (8 conn)" "fastSyncAI (16 conn)")
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generate_test_data
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echo ""
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# Run tests
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info "Testing fastSyncAI with different connection counts under ${SCENARIO_NAME}..."
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for nconn in "${CONN_COUNTS[@]}"; do
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echo -n " Testing ${nconn} connections... "
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result=$(run_test "$nconn")
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IFS='|' read -r ms mbs verified <<< "$result"
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FS_RESULTS+=("$ms|$mbs|$verified")
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if [ "$verified" -eq 1 ]; then
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ok "${mbs} MB/s (${ms}ms)"
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else
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warn "${mbs} MB/s (${ms}ms) - VERIFICATION FAILED"
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fi
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done
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echo ""
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echo -e "${BOLD}═══════════════════════════════════════════════════════════════════════════╗${RESET}"
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echo -e "${BOLD} NETWORK CONDITION RESULTS${RESET}"
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echo -e "${BOLD} Scenario: ${SCENARIO_NAME}${RESET}"
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echo -e "${BOLD}═══════════════════════════════════════════════════════════════════════════╝${RESET}"
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echo ""
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# Calculate max MB/s for bar scaling
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calc_max_mbs() {
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local max=0
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for res in "${FS_RESULTS[@]}"; do
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local mbs=$(echo "$res" | cut -d'|' -f2)
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local int_mbs=$(echo "$mbs" | awk '{printf "%d", $1+0}')
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[ "$int_mbs" -gt "$max" ] && max=$int_mbs
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done
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echo $max
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}
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MAX_MBS=$(calc_max_mbs)
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[ "$MAX_MBS" -eq 0 ] && MAX_MBS=100
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printf " %-25s %-10s %-10s %s %s\n" "Configuration" "Time (ms)" "MB/s" "Throughput" "Verified"
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printf " %-25s %-10s %-10s %s %s\n" "-------------------------" "----------" "----------" "-----------" "--------"
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for i in "${!FS_RESULTS[@]}"; do
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IFS='|' read -r ms mbs verified <<< "${FS_RESULTS[$i]}"
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bar=$(draw_bar "$mbs" "$MAX_MBS")
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verified_str=$([ "$verified" -eq 1 ] && echo "✓" || echo "✗")
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printf " %-25s %-10s %-10s %s %s\n" "${FS_LABELS[$i]}" "$ms" "$mbs" "$bar" "$verified_str"
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done
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# Find best configuration
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best_idx=0
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best_mbs=0
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for i in "${!FS_RESULTS[@]}"; do
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IFS='|' read -r ms mbs verified <<< "${FS_RESULTS[$i]}"
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mbs_int=$(echo "$mbs" | awk '{printf "%d", $1+0}')
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if [ "$mbs_int" -gt "$best_mbs" ]; then
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best_mbs=$mbs_int
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best_idx=$i
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fi
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done
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echo ""
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echo -e "${BOLD}Best configuration for ${SCENARIO_NAME}:${RESET} ${FS_LABELS[$best_idx]} (${best_mbs} MB/s)"
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echo ""
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ok "Network benchmark complete!"
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+2
-55
@@ -1,30 +1,3 @@
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# compare_rsync.sh — Compare fastSyncAI performance against rsync
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#
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# Usage:
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# ./compare_rsync.sh [DATA_SIZE_MB] [RUN_COUNT]
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#
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# Examples:
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# ./compare_rsync.sh # 100 MB, 3 runs (default)
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# ./compare_rsync.sh 500 # 500 MB, 3 runs
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# ./compare_rsync.sh 100 5 # 100 MB, 5 runs
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#
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# Tests:
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# - Small files (many files, 256KB each)
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# - Medium files (fewer files, 1-5MB each)
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# - Large single file
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# - Mixed directory structure
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#
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# Compares: fastSyncAI (TCP, multi-connection) vs rsync vs rsync with compression
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# =============================================================================
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||||
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||||
set -euo pipefail
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||||
|
||||
# ── Defaults ──────────────────────────────────────────────────────────────
|
||||
DATA_SIZE_MB=${1:-100}
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||||
RUN_COUNT=${2:-3}
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PORT=19199
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HOST="127.0.0.1"
|
||||
=======
|
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#!/usr/bin/env bash
|
||||
# =============================================================================
|
||||
# compare_rsync.sh — Compare fastSyncAI performance against rsync
|
||||
@@ -75,32 +48,6 @@ if [ $# -ge 3 ]; then
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||||
esac
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||||
fi
|
||||
|
||||
PORT=19199
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||||
HOST="127.0.0.1"=============================================================================
|
||||
# compare_rsync.sh — Compare fastSyncAI performance against rsync
|
||||
#
|
||||
# Usage:
|
||||
# ./compare_rsync.sh [DATA_SIZE_MB] [RUN_COUNT]
|
||||
#
|
||||
# Examples:
|
||||
# ./compare_rsync.sh # 100 MB, 3 runs (default)
|
||||
# ./compare_rsync.sh 500 # 500 MB, 3 runs
|
||||
# ./compare_rsync.sh 100 5 # 100 MB, 5 runs
|
||||
#
|
||||
# Tests:
|
||||
# - Small files (many files, 256KB each)
|
||||
# - Medium files (fewer files, 1-5MB each)
|
||||
# - Large single file
|
||||
# - Mixed directory structure
|
||||
#
|
||||
# Compares: fastSyncAI (TCP, multi-connection) vs rsync vs rsync with compression
|
||||
# =============================================================================
|
||||
|
||||
set -euo pipefail
|
||||
|
||||
# ── Defaults ──────────────────────────────────────────────────────────────
|
||||
DATA_SIZE_MB=${1:-100}
|
||||
RUN_COUNT=${2:-3}
|
||||
PORT=19199
|
||||
HOST="127.0.0.1"
|
||||
|
||||
@@ -387,9 +334,9 @@ done
|
||||
|
||||
# ── Print summary ────────────────────────────────────────────────────────────
|
||||
echo ""
|
||||
echo -e "${BOLD}═══════════════════════════════════════════════════════════════${RESET}"
|
||||
echo -e "${BOLD}════════════════════════════════════════════════════════════════════════╗${RESET}"
|
||||
echo -e "${BOLD} SUMMARY${RESET}"
|
||||
echo -e "${BOLD}═══════════════════════════════════════════════════════════════${RESET}"
|
||||
echo -e "${BOLD}════════════════════════════════════════════════════════════════════════╝${RESET}"
|
||||
echo ""
|
||||
|
||||
# Parse all results
|
||||
|
||||
Reference in New Issue
Block a user