如果已经有足够的硬盘写入速度测试数据，则不再执行测试

internal/utils/fs/disk.go

@@ -16,6 +16,7 @@ const diskSpeedDataFile = "disk.speed.json"
 type DiskSpeedCache struct {
 	Speed      Speed   `json:"speed"`
 	SpeedMB    float64 `json:"speedMB"`
+	CountTests int     `json:"countTests"` // test times
 }
 
 // CheckDiskWritingSpeed test disk writing speed
@@ -76,6 +77,30 @@ func CheckDiskIsFast() (speedMB float64, isFast bool, err error) {
 		return
 	}
 
+	// read old cached info
+	var cacheFile = Tea.Root + "/data/" + diskSpeedDataFile
+	var cacheInfo = &DiskSpeedCache{}
+	{
+		cacheData, cacheErr := os.ReadFile(cacheFile)
+		if cacheErr == nil {
+			var oldCacheInfo = &DiskSpeedCache{}
+			cacheErr = json.Unmarshal(cacheData, oldCacheInfo)
+			if cacheErr == nil {
+				cacheInfo = oldCacheInfo
+			}
+		}
+	}
+
+	cacheInfo.CountTests++
+
+	defer func() {
+		// write to local file
+		cacheData, jsonErr := json.Marshal(cacheInfo)
+		if jsonErr == nil {
+			_ = os.WriteFile(cacheFile, cacheData, 0666)
+		}
+	}()
+
 	isFast = speedMB > 150
 
 	if speedMB <= DiskSpeedMB {
@@ -94,14 +119,8 @@ func CheckDiskIsFast() (speedMB float64, isFast bool, err error) {
 
 	DiskSpeedMB = speedMB
 
-	// write to local file
+	cacheInfo.Speed = DiskSpeed
-	cacheData, jsonErr := json.Marshal(&DiskSpeedCache{
+	cacheInfo.SpeedMB = DiskSpeedMB
-		Speed:   DiskSpeed,
-		SpeedMB: DiskSpeedMB,
-	})
-	if jsonErr == nil {
-		_ = os.WriteFile(Tea.Root+"/data/"+diskSpeedDataFile, cacheData, 0666)
-	}
 
 	return
 }

internal/utils/fs/os.go

@@ -54,3 +54,15 @@ func Open(name string) (f *os.File, err error) {
 	ReaderLimiter.Release()
 	return
 }
+
+// ExistFile 检查文件是否存在
+func ExistFile(path string) (bool, error) {
+	stat, err := os.Stat(path)
+	if err != nil {
+		if os.IsNotExist(err) {
+			return false, nil
+		}
+		return false, err
+	}
+	return !stat.IsDir(), nil
+}

internal/utils/fs/os_test.go

@@ -4,6 +4,7 @@ package fsutils_test
 
 import (
 	fsutils "github.com/TeaOSLab/EdgeNode/internal/utils/fs"
+	"github.com/iwind/TeaGo/assert"
 	"os"
 	"testing"
 )
@@ -15,3 +16,23 @@ func TestOpenFile(t *testing.T) {
 	}
 	_ = f.Close()
 }
+
+func TestExistFile(t *testing.T) {
+	var a = assert.NewAssertion(t)
+
+	{
+		b, err := fsutils.ExistFile("./os_test.go")
+		if err != nil {
+			t.Fatal(err)
+		}
+		a.IsTrue(b)
+	}
+
+	{
+		b, err := fsutils.ExistFile("./os_test2.go")
+		if err != nil {
+			t.Fatal(err)
+		}
+		a.IsFalse(b)
+	}
+}

internal/utils/fs/status.go

@@ -56,6 +56,7 @@ func init() {
 	// test disk
 	goman.New(func() {
 		// load last result from local disk
+		var countTests int
 		cacheData, cacheErr := os.ReadFile(Tea.Root + "/data/" + diskSpeedDataFile)
 		if cacheErr == nil {
 			var cache = &DiskSpeedCache{}
@@ -63,9 +64,11 @@ func init() {
 			if err == nil && cache.SpeedMB > 0 {
 				DiskSpeedMB = cache.SpeedMB
 				DiskSpeed = cache.Speed
+				countTests = cache.CountTests
 			}
 		}
 
+		if countTests < 12 {
 			// initial check
 			_, _, _ = CheckDiskIsFast()
 
@@ -81,6 +84,7 @@ func init() {
 					}
 				}
 			}
+		}
 	})
 
 	// check high load