update

test_optimization_v3.sh

@@ -0,0 +1,88 @@
+#!/bin/bash
+
+# DNS性能优化验证脚本（简化版）
+SERVER="127.0.0.1"
+DOMAIN="example.com"
+CONCURRENCY=50
+QUERIES=2000
+
+echo "========================================="
+echo "DNS服务器多线程优化验证测试"
+echo "========================================="
+echo "服务器: $SERVER"
+echo "域名: $DOMAIN"
+echo "并发数: $CONCURRENCY"
+echo "总查询数: $QUERIES"
+echo "========================================="
+
+echo ""
+echo "启动DNS服务器..."
+./dns-server > /dev/null 2>&1 &
+DNS_PID=$!
+echo "DNS服务器PID: $DNS_PID"
+
+sleep 5
+
+echo ""
+echo "========================================="
+echo "开始压力测试前系统状态："
+echo "========================================="
+echo "CPU使用率:"
+top -b -n 1 | grep "Cpu(s)" | awk '{print "  " $2 "% 用户, " $4 "% 系统, " $8 "% 空闲"}'
+echo ""
+echo "内存使用情况:"
+free -h | grep -E "Mem|Swap" | awk '{print "  " $1 ": " $3 "/" $2 " (" $3/$2*100 "% 使用)"}'
+echo ""
+echo "DNS服务器进程资源使用:"
+ps -p $DNS_PID -o %cpu,%mem,cmd --no-headers | awk '{print "  CPU: " $1 "%, 内存: " $2 "%"}'
+
+echo ""
+echo "========================================="
+echo "开始压力测试..."
+echo "========================================="
+
+start_time=$(date +%s.%N)
+
+for ((i=1; i<=$QUERIES; i++)); do
+  dig @$SERVER $DOMAIN A +short > /dev/null 2>&1 &
+  
+  if (( $i % $CONCURRENCY == 0 )); then
+    wait
+  fi
+done
+
+wait
+
+end_time=$(date +%s.%N)
+elapsed=$(echo "$end_time - $start_time" | bc)
+qps=$(echo "scale=2; $QUERIES / $elapsed" | bc)
+
+echo ""
+echo "========================================="
+echo "压力测试后系统状态："
+echo "========================================="
+echo "CPU使用率:"
+top -b -n 1 | grep "Cpu(s)" | awk '{print "  " $2 "% 用户, " $4 "% 系统, " $8 "% 空闲"}'
+echo ""
+echo "内存使用情况:"
+free -h | grep -E "Mem|Swap" | awk '{print "  " $1 ": " $3 "/" $2 " (" $3/$2*100 "% 使用)"}'
+echo ""
+echo "DNS服务器进程资源使用:"
+ps -p $DNS_PID -o %cpu,%mem,cmd --no-headers 2>/dev/null | awk '{print "  CPU: " $1 "%, 内存: " $2 "%"}'
+
+echo ""
+echo "========================================="
+echo "测试结果："
+echo "========================================="
+echo "总查询数: $QUERIES"
+echo "执行时间: $elapsed 秒"
+echo "QPS: $qps 次/秒"
+echo "========================================="
+
+echo ""
+echo "停止DNS服务器..."
+kill $DNS_PID 2>/dev/null
+sleep 2
+
+echo ""
+echo "测试完成！"