chore(): add time sleep config

go.mod

@@ -10,6 +10,7 @@ require (
 	github.com/stretchr/testify v1.8.2
 	github.com/tklauser/go-sysconf v0.3.11
 	github.com/yusufpapurcu/wmi v1.2.2
+	go.easyops.local/slog v0.0.0-20240218012623-b8d04ff912aa
 	golang.org/x/sys v0.6.0
 )
 

go.sum

@@ -1,40 +1,111 @@
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net/net_linux.go

@@ -671,7 +671,8 @@ func getProcInodesAllWithContext(ctx context.Context, root string, max int) (map
 	}
 	ret := make(map[string][]inodeMap)
 
-	for _, pid := range pids {
+	for i, pid := range pids {
+		TimeSleep(i)
 		t, err := getProcInodes(root, pid, max)
 		if err != nil {
 			// skip if permission error or no longer exists

net/net_windows.go

@@ -413,7 +413,8 @@ func getTCPConnections(family uint32) ([]ConnectionStat, error) {
 		return nil, fmt.Errorf("faimly must be required")
 	}
 
-	for {
+	for i := 0; ; i++ {
+		TimeSleep(i)
 		switch family {
 		case kindTCP4.family:
 			if len(buf) > 0 {
@@ -464,6 +465,7 @@ func getTCPConnections(family uint32) ([]ConnectionStat, error) {
 	}
 
 	for i := 0; i < length; i++ {
+		TimeSleep(i)
 		switch family {
 		case kindTCP4.family:
 			mibs := (*mibTCPRowOwnerPid)(unsafe.Pointer(&buf[index]))

net/sleep.go

@@ -0,0 +1,34 @@
+package net
+
+import (
+	"go.easyops.local/slog"
+	"sync/atomic"
+	"time"
+)
+
+var config SleepConfig
+
+type SleepConfig struct {
+	sleepMs         atomic.Int64
+	loopBeforeSleep atomic.Int32
+	logger          slog.Logger
+}
+
+func InitSleepConfig(ms int, loop int, logger slog.Logger) {
+	config = SleepConfig{}
+	config.sleepMs.Store(int64(ms))
+	config.loopBeforeSleep.Store(int32(loop))
+	config.logger = logger
+}
+
+func TimeSleep(i int) {
+	j := int(config.loopBeforeSleep.Load())
+	if j == 0 || (i+1)%j != 0 {
+		return
+	}
+	ms := config.sleepMs.Load()
+	if ms != 0 {
+		config.logger.Infof("time sleep, sleep duration: %d, current loop count: %d", ms, i)
+		time.Sleep(time.Duration(ms) * time.Millisecond)
+	}
+}