Very Slow Transfer Speed on Raspberry Pi 4 with OMV 5

I tried my other external Disk.

Formatted it to ext4 on the OMV RPi4 an ran the test.

Turns out that drive can reach up to 100+ MB/s in write-Speed.

I´m now going to copy all files and clear the MyBook. Than i´m going to formate it to ext4.

dont know if i did something wrong the first time.

the only thing i tried around with was the write-cache and advanced power management which is activated under

Storage - Disk - edit (the drive)

Settings:

1 - Minimum power usage with standby (spindown)

Maximum performance, maximum acoustic output

20 minutes

Write-cache enable

Test done:

SMB Extra Options modified to:

min receivefile size = 16384

write cache size = 524288

getwd cache = yes

socket options = TCP_NODELAY IPTOS_LOWDELAY

read raw = yes

write raw = yes

Storage - Disk - edit (the drive)

Settings:

1 - Minimum power usage with standby (spindown)

Maximum performance, maximum acoustic output

20 minutes

Write-cache enable

Western Digital My Book USB 3.0 (WDBBGB) 12TB (WDBBGB0120HBK)

omv 5.5.23-1 (usul) on RPi4 Kernel 5.4.83

------------------------------------------------------------------------------

CrystalDiskMark 8.0.1 x64 (C) 2007-2021 hiyohiyo

Crystal Dew World: https://crystalmark.info/

------------------------------------------------------------------------------

* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]

* KB = 1000 bytes, KiB = 1024 bytes

[Read]

SEQ 1MiB (Q= 8, T= 1): 102.885 MB/s [ 98.1 IOPS] < 80819.75 us>

SEQ 1MiB (Q= 1, T= 1): 99.157 MB/s [ 94.6 IOPS] < 10566.57 us>

RND 4KiB (Q= 32, T= 1): 51.263 MB/s [ 12515.4 IOPS] < 2554.58 us>

RND 4KiB (Q= 1, T= 1): 8.835 MB/s [ 2157.0 IOPS] < 462.51 us>

[Write]

SEQ 1MiB (Q= 8, T= 1): 118.255 MB/s [ 112.8 IOPS] < 70155.66 us>

SEQ 1MiB (Q= 1, T= 1): 111.288 MB/s [ 106.1 IOPS] < 9409.57 us>

RND 4KiB (Q= 32, T= 1): 49.696 MB/s [ 12132.8 IOPS] < 2632.65 us>

RND 4KiB (Q= 1, T= 1): 8.911 MB/s [ 2175.5 IOPS] < 458.13 us>

Profile: Default

Test: 64 MiB (x5)

Mode: [Admin]

Time: Measure 5 sec / Interval 5 sec

Date: 2021/02/03 19:08:09

OS: Windows 10 Professional N [10.0 Build 19042] (x64)

lsusb -t

/:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 5000M
|__ Port 2: Dev 2, If 0, Class=Mass Storage, Driver=usb-storage, 5000M
/:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/1p, 480M
|__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480

118.255 MB/s sounds fine to me. much better than only up to 30 MB/s

seems you were right @mi-hol. sorry for the confusion with the format of the drive. Thanks for your help.

ext4 seems to do it for me pretty well.

Thanks for taking the time to try my suggestions. Well done!

I tried

Write-cache enable

read raw = yes

write raw = yes

Nothing helps. Write speed to USB3 1Tb ext4 hdd 2-10MB/s. Read - 85-115 MB/s

Raspberry Pi 4 8 Gb raspiOS 64 bit. dd command shows write speed 78+ Mb/s

Will look in future for better software. As I saw in this topic OMV is bugged soft and people can't find reasons why.

same problem here. Speed drops from 100 mbs to 10 mbs and that again up.

tried everything. also tcp settings.

Zitat von pasha4ur

As I saw in this topic OMV is bugged soft and people can't find reasons why.

that others were able to fix the issue via SMB configuration, tells you what?

I have this and still speed drops.

1 gb network.

TCP settings :

client min protocol=NT1

ntlm auth=yes

min receivefile size = 16384

write cache size = 524288

getwd cache = yes

socket options = TCP_NODELAY IPTOS_LOWDELAY

read raw = yes

write raw = yes

root@raspberrypi:~# lsusb -t

/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 5000M

|__ Port 1: Dev 2, If 0, Class=Mass Storage, Driver=uas, 5000M

/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/1p, 480M

|__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480M

root@raspberrypi:~# lsusb -t

/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 5000M

|__ Port 1: Dev 2, If 0, Class=Mass Storage, Driver=uas, 5000M

/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/1p, 480M

|__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480M

root@raspberrypi:~#

Birdybird without hardware details and benchmarks results, how would anybody be able to help?

Zitat von mi-hol

Birdybird without hardware details and benchmarks results, how would anybody be able to help?

RP4 with sandidk sdssdh3 1t00 1 Terabyte usb3 attached with latest omv5. Copy from w10 client to ext4 formatted drive.

To run the benchmark yourself type/paste:

wget https://raw.githubusercontent.…chmarks/master/Storage.sh

chmod +x Storage.sh

sudo ./Storage.sh

login as: root

root@192.168.1.9's password:

Linux raspberrypi 5.10.11-v7l+ #1399 SMP Thu Jan 28 12:09:48 GMT 2021 armv7l

Clock speeds: CPU: 1500 - Core: 500 - RAM:

System rootfs drive (/) has been detected as /dev/mmcblk0p2 (mmcblk0p2)

% Total % Received % Xferd Average Speed Time Time Time Current

Dload Upload Total Spent Left Speed

100 795k 100 795k 0 0 2361k 0 --:--:-- --:--:-- --:--:-- 2361k

System: Host: raspberrypi Kernel: 5.10.11-v7l+ armv7l bits: 32 compiler: gcc v: 10.2.1 Console: tty 1

Distro: Raspbian GNU/Linux 10 (buster)

Machine: Type: ARM Device System: Raspberry Pi 4 Model B Rev 1.1 details: BCM2711 rev: c03111 serial: 100000000008378e

CPU: Info: Quad Core model: ARMv7 v7l variant: cortex-a72 bits: 32 type: MCP arch: v7l rev: 3

features: Use -f option to see features bogomips: 1080

Speed: 1500 MHz min/max: 600/1500 MHz Core speeds (MHz): 1: 1500 2: 1500 3: 1500 4: 1500

Graphics: Device-1: bcm2711-vc5 driver: vc4_drm v: N/A bus ID: N/A

Device-2: bcm2711-hdmi0 driver: N/A bus ID: N/A

Device-3: bcm2711-hdmi1 driver: N/A bus ID: N/A

Display: server: No display server data found. Headless machine? tty: 137x42

Message: Unable to show advanced data. Required tool glxinfo missing.

Network: Message: No ARM data found for this feature.

IF-ID-1: eth0 state: up speed: 1000 Mbps duplex: full mac: dc:a6:32:44:c6:79

IF-ID-2: tun0 state: unknown speed: 10 Mbps duplex: full mac: N/A

IF-ID-3: wlan0 state: down mac: dc:a6:32:44:c6:7a

Drives: Local Storage: total: 938.92 GiB used: 704.5 GiB (75.0%)

ID-1: /dev/mmcblk0 vendor: SanDisk model: SU08G size: 7.4 GiB

ID-2: /dev/sda type: USB vendor: SanDisk model: SDSSDH3 1T00 size: 931.51 GiB

Message: No Optical or Floppy data was found.

Partition: ID-1: / size: 6.97 GiB used: 2.09 GiB (30.0%) fs: ext4 dev: /dev/mmcblk0p2

ID-2: /boot size: 252 MiB used: 47.6 MiB (18.9%) fs: vfat dev: /dev/mmcblk0p1

Info: Processes: 403 Uptime: 13d 1h 46m Memory: 3.81 GiB used: 526.5 MiB (13.5%) gpu: 76 MiB Init: systemd runlevel: 5

Compilers: gcc: 8.3.0 Packages: 742 Shell: Sudo v: 1.8.27 inxi: 3.3.01

Card CSD status register: MID: 3 OID: SD PNM: SU08G PRV: 8.0 MDATE: 1/2012

Card SCR status register: SD Physical Version Specification: 3

MicroSD information: Clock Speed: 50.0 - Manufacturer: SanDisk - Model: SU08G - Vendor: SD - Product: SD - HW Version: 0x8 - FW Version: 0x0 - Date Manufactured: 01/2012

Class: Class 4

Running HDParm tests ...

/dev/mmcblk0p2:

Timing O_DIRECT cached reads: 44 MB in 2.02 seconds = 21.82 MB/sec

Timing O_DIRECT disk reads: 66 MB in 3.04 seconds = 21.68 MB/sec

HDParm: 21.68 MB/s - HDParmCached: 21.82 MB/s

Running dd tests ...

81920+0 records in

81920+0 records out

335544320 bytes (336 MB, 320 MiB) copied, 73.0562 s, 4.6 MB/s

DD Write Speed: 4.6 MB/s

Running fio write test ...

Running fio read test ...

FIO results - 4k RandWrite: 86 IOPS (345 KB/s) - 4k RandRead: 1437 IOPS (5749 KB/s)

Running iozone test ...

Iozone: Performance Test of File I/O

Version $Revision: 3.429 $

Compiled for 32 bit mode.

Build: linux

Contributors:William Norcott, Don Capps, Isom Crawford, Kirby Collins

Al Slater, Scott Rhine, Mike Wisner, Ken Goss

Steve Landherr, Brad Smith, Mark Kelly, Dr. Alain CYR,

Randy Dunlap, Mark Montague, Dan Million, Gavin Brebner,

Jean-Marc Zucconi, Jeff Blomberg, Benny Halevy, Dave Boone,

Erik Habbinga, Kris Strecker, Walter Wong, Joshua Root,

Fabrice Bacchella, Zhenghua Xue, Qin Li, Darren Sawyer,

Vangel Bojaxhi, Ben England, Vikentsi Lapa.

Run began: Tue Mar 9 17:10:04 2021

Auto Mode

Include fsync in write timing

O_DIRECT feature enabled

File size set to 81920 kB

Record Size 4 kB

Command line used: iozone -a -e -I -i 0 -i 1 -i 2 -s 80M -r 4k

Output is in kBytes/sec

Time Resolution = 0.000001 seconds.

Processor cache size set to 1024 kBytes.

Processor cache line size set to 32 bytes.

File stride size set to 17 * record size.

random random bkwd record stride

kB reclen write rewrite read reread read write read rewrite read fwrite frewrite fread freread

81920 4 1256 1302 5155 5170 5141 408

iozone test complete.

RandRead: 5141 - RandWrite: 408 - Read: 5155 - Write: 1256

Enter a description of your storage and setup (Example: Kingston A400 SSD on Pi 4 using StarTech SATA to USB adapter)

Description: sandisk

(Optional) Enter alias to use on benchmark results. Leave blank for completely anonymous.

Alias (leave blank for Anonymous):

Category Test Result

HDParm Disk Read 21.68 MB/s

HDParm Cached Disk Read 21.82 MB/s

DD Disk Write 4.6 MB/s

FIO 4k random read 1437 IOPS (5749 KB/s)

FIO 4k random write 86 IOPS (345 KB/s)

IOZone 4k read 5155 KB/s

IOZone 4k write 1256 KB/s

IOZone 4k random read 5141 KB/s

IOZone 4k random write 408 KB/s

Score: 423

Birdybird the network hardware is not mentioned.

Did you see the variation that different routers cause in the benchmark result link in below signature?

network hardware is 1gb speed. cat5e cables

its a router experiabox v10a. a couple of months

ago i used raspian buster with minidlna i had no speed drops. also when omv5 came out i had no speed drops. speed was around 100mbs. i can test tomorrow with raspian buster if the speed is the same.

Zitat von Birdybird

router experiabox v10a

while you measured, did you switch off Wifi and disconnect all ethernet cables except for the systems under test?

the router seems to have a single (low performance) processor, I'd suspect (even bet money) that some WiFi related activity is causing the periodic slow down.

i assure you nobody used wifi or the router.

Zitat von Birdybird

i assure you nobody used wifi

unfortunately that doesn't help behause wifi has periodic activities (ie. automatic channel hopping) that consume cpu resources even when wifi is not used AND you have no control about what connect devices (like smartphones) do in the background while they are not actively used

i checked. wifi is off. i use wifi extenders.

so the experiabox does not use wifi.

Nobody has problems with speed drops raspberry4 with omv5 ?

I installed iperf but what options do i use ?

I checked everything. raspberry4direct cable to switch then direct cable to switch to client pc w10

Zitat von Birdybird

I installed iperf but what options do i use ?

On one of the devices (i.e. Raspberry Pi) run it as a server:

iperf3 -s -f K

and on the other (your PC, I use Linux, but I'm sure there is iperf for other OS's too) as a client connecting to that iperf 'server':

iperf3 -c 192.168.10.1 -f K

change the ip address to you iperf server IP you run the first code from above.

Both machine will give you similar results. Paste the results from one of them here.