CheckDiskWritingSpeed test disk writing speed
()
| 20 | |
| 21 | // CheckDiskWritingSpeed test disk writing speed |
| 22 | func CheckDiskWritingSpeed() (speedMB float64, err error) { |
| 23 | var tempDir = os.TempDir() |
| 24 | if len(tempDir) == 0 { |
| 25 | tempDir = "/tmp" |
| 26 | } |
| 27 | |
| 28 | const filename = "edge-disk-writing-test.data" |
| 29 | var path = tempDir + "/" + filename |
| 30 | _ = os.Remove(path) // always try to delete the file |
| 31 | |
| 32 | fp, err := os.OpenFile(path, os.O_CREATE|os.O_WRONLY, 0666) |
| 33 | if err != nil { |
| 34 | return 0, err |
| 35 | } |
| 36 | |
| 37 | var isClosed bool |
| 38 | defer func() { |
| 39 | if !isClosed { |
| 40 | _ = fp.Close() |
| 41 | } |
| 42 | |
| 43 | _ = os.Remove(path) |
| 44 | }() |
| 45 | |
| 46 | var data = bytes.Repeat([]byte{'A'}, 16<<20) |
| 47 | var before = time.Now() |
| 48 | _, err = fp.Write(data) |
| 49 | if err != nil { |
| 50 | return 0, err |
| 51 | } |
| 52 | |
| 53 | err = fp.Sync() |
| 54 | if err != nil { |
| 55 | return 0, err |
| 56 | } |
| 57 | |
| 58 | err = fp.Close() |
| 59 | if err != nil { |
| 60 | return 0, err |
| 61 | } |
| 62 | |
| 63 | var costSeconds = time.Since(before).Seconds() |
| 64 | speedMB = float64(len(data)) / (1 << 20) / costSeconds |
| 65 | speedMB = math.Ceil(speedMB/10) * 10 |
| 66 | |
| 67 | isClosed = true |
| 68 | |
| 69 | return |
| 70 | } |
| 71 | |
| 72 | // CheckDiskIsFast check disk is 'fast' disk to write |
| 73 | func CheckDiskIsFast() (speedMB float64, isFast bool, err error) { |
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