89 lines
2.4 KiB
Bash
Executable File
89 lines
2.4 KiB
Bash
Executable File
#!/bin/bash
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# DNS性能优化验证脚本（使用并发查询）
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SERVER="127.0.0.1"
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DOMAIN="example.com"
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CONCURRENCY=100
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QUERIES=10000
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echo "========================================="
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echo "DNS服务器多线程优化验证测试"
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echo "========================================="
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echo "服务器: $SERVER"
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echo "域名: $DOMAIN"
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echo "并发数: $CONCURRENCY"
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echo "总查询数: $QUERIES"
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echo "========================================="
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echo ""
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echo "启动DNS服务器..."
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./dns-server > /dev/null 2>&1 &
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DNS_PID=$!
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echo "DNS服务器PID: $DNS_PID"
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sleep 5
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echo ""
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echo "========================================="
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echo "开始压力测试前系统状态："
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echo "========================================="
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echo "CPU使用率:"
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top -b -n 1 | grep "Cpu(s)" | awk '{print " " $2 "% 用户, " $4 "% 系统, " $8 "% 空闲"}'
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echo ""
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echo "内存使用情况:"
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free -h | grep -E "Mem|Swap" | awk '{print " " $1 ": " $3 "/" $2 " (" $3/$2*100 "% 使用)"}'
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echo ""
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echo "DNS服务器进程资源使用:"
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ps -p $DNS_PID -o %cpu,%mem,cmd --no-headers | awk '{print " CPU: " $1 "%, 内存: " $2 "%"}'
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echo ""
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echo "========================================="
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echo "开始压力测试..."
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echo "========================================="
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start_time=$(date +%s.%N)
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for ((i=1; i<=$QUERIES; i++)); do
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dig @$SERVER $DOMAIN A +short > /dev/null 2>&1 &
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if (( $i % $CONCURRENCY == 0 )); then
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wait
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fi
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done
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wait
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end_time=$(date +%s.%N)
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elapsed=$(echo "$end_time - $start_time" | bc)
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qps=$(echo "scale=2; $QUERIES / $elapsed" | bc)
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echo ""
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echo "========================================="
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echo "压力测试后系统状态："
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echo "========================================="
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echo "CPU使用率:"
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top -b -n 1 | grep "Cpu(s)" | awk '{print " " $2 "% 用户, " $4 "% 系统, " $8 "% 空闲"}'
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echo ""
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echo "内存使用情况:"
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free -h | grep -E "Mem|Swap" | awk '{print " " $1 ": " $3 "/" $2 " (" $3/$2*100 "% 使用)"}'
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echo ""
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echo "DNS服务器进程资源使用:"
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ps -p $DNS_PID -o %cpu,%mem,cmd --no-headers 2>/dev/null | awk '{print " CPU: " $1 "%, 内存: " $2 "%"}'
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echo ""
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echo "========================================="
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echo "测试结果："
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echo "========================================="
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echo "总查询数: $QUERIES"
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echo "执行时间: $elapsed 秒"
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echo "QPS: $qps 次/秒"
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echo "========================================="
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echo ""
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echo "停止DNS服务器..."
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kill $DNS_PID 2>/dev/null
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sleep 2
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echo ""
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echo "测试完成！"
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