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perf: 三阶段性能优化，ICMP 并发提升+TCP 并行探测，端口扫描退避调整，服务探测超时减半

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This commit is contained in:
ZacharyZcR
2026-04-28 11:44:00 +08:00
parent b3d4434057
commit 5b9bcf3937
4 changed files with 38 additions and 20 deletions
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core/port_scan.go
+4 -4
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@@ -286,9 +286,9 @@ func connectWithRetry(ctx context.Context, session *common.ScanSession, addr str
// 记录资源耗尽错误
session.State.IncrementResourceExhaustedCount()
// 指数退避：第1次等50ms，第2次等150ms
// 指数退避：200ms → 600ms → 1200ms
if attempt < maxRetries-1 {
waitTime := time.Duration(50*(attempt+1)) * time.Millisecond
waitTime := time.Duration(200*(1<<uint(attempt))) * time.Millisecond
time.Sleep(waitTime)
}
}
@@ -350,7 +350,7 @@ func buildServiceLogMessage(addr string, serviceInfo *ServiceInfo, isWeb bool) s
func scanSinglePort(ctx context.Context, host string, port int, addr string, timeout time.Duration, count *int64, collector *resultCollector, failedCollector *failedPortCollector, session *common.ScanSession) {
config := session.Config
// 步骤1：建立连接
conn, err := connectWithRetry(ctx, session, addr, timeout, 3)
conn, err := connectWithRetry(ctx, session, addr, timeout, 2)
if err != nil {
handleConnectionFailure(err, host, port, addr, failedCollector)
return
@@ -369,7 +369,7 @@ func scanSinglePort(ctx context.Context, host string, port int, addr string, tim
if common.IsProxyEnabled() && verifyMethod != "direct" {
_ = conn.Close()
// 重新建立干净的连接用于服务识别
conn, err = connectWithRetry(ctx, session, addr, timeout, 3)
conn, err = connectWithRetry(ctx, session, addr, timeout, 2)
if err != nil {
handleConnectionFailure(err, host, port, addr, failedCollector)
return