v0.7.8 - Fully static builds implemented with musl-gcc
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269
tests/resource_monitoring.sh
Executable file
269
tests/resource_monitoring.sh
Executable file
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#!/bin/bash
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# Resource Monitoring Suite for C-Relay
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# Monitors memory and CPU usage during testing
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set -e
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# Configuration
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RELAY_HOST="127.0.0.1"
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RELAY_PORT="8888"
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MONITOR_DURATION=60 # seconds
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SAMPLE_INTERVAL=2 # seconds
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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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# Metrics storage
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CPU_SAMPLES=()
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MEM_SAMPLES=()
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CONNECTION_SAMPLES=()
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TIMESTAMP_SAMPLES=()
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# Function to get relay process info
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get_relay_info() {
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local pid
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pid=$(pgrep -f "c_relay" | head -1)
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if [[ -z "$pid" ]]; then
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echo "0:0:0:0"
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return
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fi
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# Get CPU, memory, and other stats
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local ps_output
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ps_output=$(ps -p "$pid" -o pcpu,pmem,vsz,rss --no-headers 2>/dev/null || echo "0.0 0.0 0 0")
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# Get connection count
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local connections
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connections=$(netstat -t 2>/dev/null | grep ":$RELAY_PORT" | wc -l 2>/dev/null || echo "0")
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echo "$ps_output $connections"
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}
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# Function to monitor resources
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monitor_resources() {
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local duration="$1"
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local interval="$2"
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echo "=========================================="
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echo "Resource Monitoring Started"
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echo "=========================================="
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echo "Duration: ${duration}s, Interval: ${interval}s"
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echo ""
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# Clear arrays
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CPU_SAMPLES=()
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MEM_SAMPLES=()
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CONNECTION_SAMPLES=()
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TIMESTAMP_SAMPLES=()
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local start_time
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start_time=$(date +%s)
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local sample_count=0
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echo "Time | CPU% | Mem% | VSZ(KB) | RSS(KB) | Connections"
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echo "-----+------+------+---------+---------+------------"
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while [[ $(($(date +%s) - start_time)) -lt duration ]]; do
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local relay_info
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relay_info=$(get_relay_info)
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if [[ "$relay_info" != "0:0:0:0" ]]; then
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local cpu mem vsz rss connections
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IFS=' ' read -r cpu mem vsz rss connections <<< "$relay_info"
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# Store samples
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CPU_SAMPLES+=("$cpu")
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MEM_SAMPLES+=("$mem")
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CONNECTION_SAMPLES+=("$connections")
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TIMESTAMP_SAMPLES+=("$sample_count")
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# Display current stats
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local elapsed
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elapsed=$(($(date +%s) - start_time))
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printf "%4ds | %4.1f | %4.1f | %7s | %7s | %10s\n" \
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"$elapsed" "$cpu" "$mem" "$vsz" "$rss" "$connections"
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else
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echo " -- | Relay process not found --"
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fi
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((sample_count++))
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sleep "$interval"
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done
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echo ""
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}
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# Function to calculate statistics
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calculate_stats() {
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local array_name="$1"
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local -n array_ref="$array_name"
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if [[ ${#array_ref[@]} -eq 0 ]]; then
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echo "0:0:0:0:0"
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return
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fi
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local sum=0
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local min=${array_ref[0]}
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local max=${array_ref[0]}
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for value in "${array_ref[@]}"; do
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# Use awk for floating point arithmetic
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sum=$(awk "BEGIN {print $sum + $value}")
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min=$(awk "BEGIN {print ($value < $min) ? $value : $min}")
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max=$(awk "BEGIN {print ($value > $max) ? $value : $max}")
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done
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local avg
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avg=$(awk "BEGIN {print $sum / ${#array_ref[@]} }")
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echo "$avg:$min:$max:$sum:${#array_ref[@]}"
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}
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# Function to generate resource report
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generate_resource_report() {
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echo "=========================================="
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echo "Resource Monitoring Report"
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echo "=========================================="
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if [[ ${#CPU_SAMPLES[@]} -eq 0 ]]; then
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echo "No resource samples collected. Is the relay running?"
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return
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fi
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# Calculate statistics
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local cpu_stats mem_stats conn_stats
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cpu_stats=$(calculate_stats CPU_SAMPLES)
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mem_stats=$(calculate_stats MEM_SAMPLES)
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conn_stats=$(calculate_stats CONNECTION_SAMPLES)
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# Parse statistics
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IFS=':' read -r cpu_avg cpu_min cpu_max cpu_sum cpu_count <<< "$cpu_stats"
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IFS=':' read -r mem_avg mem_min mem_max mem_sum mem_count <<< "$mem_stats"
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IFS=':' read -r conn_avg conn_min conn_max conn_sum conn_count <<< "$conn_stats"
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echo "CPU Usage Statistics:"
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printf " Average: %.2f%%\n" "$cpu_avg"
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printf " Minimum: %.2f%%\n" "$cpu_min"
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printf " Maximum: %.2f%%\n" "$cpu_max"
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printf " Samples: %d\n" "$cpu_count"
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echo ""
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echo "Memory Usage Statistics:"
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printf " Average: %.2f%%\n" "$mem_avg"
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printf " Minimum: %.2f%%\n" "$mem_min"
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printf " Maximum: %.2f%%\n" "$mem_max"
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printf " Samples: %d\n" "$mem_count"
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echo ""
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echo "Connection Statistics:"
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printf " Average: %.1f connections\n" "$conn_avg"
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printf " Minimum: %.1f connections\n" "$conn_min"
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printf " Maximum: %.1f connections\n" "$conn_max"
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printf " Samples: %d\n" "$conn_count"
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echo ""
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# Performance assessment
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echo "Performance Assessment:"
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if awk "BEGIN {exit !($cpu_avg < 50)}"; then
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echo -e " ${GREEN}✓ CPU usage is acceptable${NC}"
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else
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echo -e " ${RED}✗ CPU usage is high${NC}"
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fi
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if awk "BEGIN {exit !($mem_avg < 80)}"; then
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echo -e " ${GREEN}✓ Memory usage is acceptable${NC}"
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else
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echo -e " ${RED}✗ Memory usage is high${NC}"
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fi
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if [[ $(awk "BEGIN {print int($conn_max)}") -gt 0 ]]; then
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echo -e " ${GREEN}✓ Relay is handling connections${NC}"
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else
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echo -e " ${YELLOW}⚠ No active connections detected${NC}"
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fi
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}
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# Function to run load test with monitoring
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run_monitored_load_test() {
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local test_name="$1"
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local description="$2"
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echo "=========================================="
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echo "Monitored Load Test: $test_name"
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echo "=========================================="
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echo "Description: $description"
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echo ""
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# Start monitoring in background
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monitor_resources 30 2 &
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local monitor_pid=$!
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# Wait a moment for monitoring to start
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sleep 2
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# Run a simple load test (create multiple subscriptions)
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echo "Running load test..."
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for i in {1..20}; do
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timeout 3 bash -c "
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echo '[\"REQ\",\"monitor_test_'${i}'\",{}]' | websocat -B 1048576 ws://$RELAY_HOST:$RELAY_PORT >/dev/null 2>&1
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" 2>/dev/null &
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done
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# Let the load run for a bit
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sleep 10
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# Clean up subscriptions
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echo "Cleaning up test subscriptions..."
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for i in {1..20}; do
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timeout 3 bash -c "
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echo '[\"CLOSE\",\"monitor_test_'${i}'\"]' | websocat -B 1048576 ws://$RELAY_HOST:$RELAY_PORT >/dev/null 2>&1
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" 2>/dev/null &
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done
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# Wait for monitoring to complete
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sleep 5
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kill "$monitor_pid" 2>/dev/null || true
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wait "$monitor_pid" 2>/dev/null || true
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echo ""
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}
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echo "=========================================="
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echo "C-Relay Resource Monitoring Suite"
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echo "=========================================="
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echo "Monitoring relay at ws://$RELAY_HOST:$RELAY_PORT"
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echo ""
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# Check if relay is running
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if ! pgrep -f "c_relay" >/dev/null 2>&1; then
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echo -e "${RED}Relay process not found. Please start the relay first.${NC}"
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echo "Use: ./make_and_restart_relay.sh"
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exit 1
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fi
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echo -e "${GREEN}✓ Relay process found${NC}"
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echo ""
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# Run baseline monitoring
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echo "=== Baseline Resource Monitoring ==="
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monitor_resources 15 2
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generate_resource_report
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echo ""
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# Run monitored load test
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run_monitored_load_test "Subscription Load Test" "Creating and closing multiple subscriptions while monitoring resources"
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generate_resource_report
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echo ""
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echo "=========================================="
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echo "Resource Monitoring Complete"
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echo "=========================================="
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echo "Resource monitoring completed. Review the statistics above."
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echo "High CPU/memory usage may indicate performance issues."
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