Fast Write - Slow Read (NFS, SMB, SFTP)

crimsdings · 15. Dezember 2018

I have just set up a fresh omv installation and network write speeds look fine enough with more then 70 MB/s - however i dont get more then 30 MB/s Read speed. NFS or SMB dont make a difference, neither to different disks. Any clue what i can do?

mount:

Code

/dev/sdb1 on /sharedfolders/smbtest type ext4 (rw,noexec,relatime,data=ordered,jqfmt=vfsv0,usrjquota=aquota.user,grpjquota=aquota.group)

ifconfig:

Code

root@openmediavault:/dev# ifconfig


enp4s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.0.59  netmask 255.255.255.0  broadcast 192.168.0.255
        ether 14:da:e9:67:fc:61  txqueuelen 1000  (Ethernet)
        RX packets 49797736  bytes 69119334794 (64.3 GiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 13111850  bytes 12808080978 (11.9 GiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

ethtool:

Code

Settings for enp4s0:
        Supported ports: [ TP MII ]
        Supported link modes:   10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
                                1000baseT/Half 1000baseT/Full
        Supported pause frame use: No
        Supports auto-negotiation: Yes
        Advertised link modes:  10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
                                1000baseT/Half 1000baseT/Full
        Advertised pause frame use: Symmetric Receive-only
        Advertised auto-negotiation: Yes
        Link partner advertised link modes:  10baseT/Half 10baseT/Full
                                             100baseT/Half 100baseT/Full
                                             1000baseT/Full
        Link partner advertised pause frame use: Symmetric
        Link partner advertised auto-negotiation: Yes
        Speed: 1000Mb/s
        Duplex: Full
        Port: MII
        PHYAD: 0
        Transceiver: internal
        Auto-negotiation: on
        Supports Wake-on: pumbg
        Wake-on: g
        Current message level: 0x00000033 (51)
                               drv probe ifdown ifup
        Link detected: yes

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ethtool -i enp4s0

Code

driver: r8169
version: 2.3LK-NAPI
firmware-version: rtl_nic/rtl8168e-2.fw
expansion-rom-version:
bus-info: 0000:04:00.0
supports-statistics: yes
supports-test: no
supports-eeprom-access: no
supports-register-dump: yes
supports-priv-flags: no

uname -v

Code

#1 SMP Debian 4.14.13-1~bpo9+1 (2018-01-14)

omv-sysinfo

Code

================================================================================
= OS/Debian information
================================================================================
Distributor ID: Debian
Description: Debian GNU/Linux 9.4 (stretch)
Release: 9.4
Codename: stretch


================================================================================
= openmediavault information
================================================================================
Release: 4.1.14-1
Codename: Arrakis


================================================================================
= Date
================================================================================
Sat Dec 15 14:49:54 CET 2018


================================================================================
= Hostname
================================================================================




================================================================================
= Locale
================================================================================
en_US.UTF-8


================================================================================
= System information
================================================================================
Linux openmediavault 4.14.0-0.bpo.3-amd64 #1 SMP Debian 4.14.13-1~bpo9+1 (2018-01-14) x86_64 GNU/Linux


================================================================================
= Uptime
================================================================================
14:49:54 up 5 days, 2:25, 1 user, load average: 0.50, 0.16, 0.05


================================================================================
= Network interfaces
================================================================================
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: enp4s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether 14:da:e9:67:fc:61 brd ff:ff:ff:ff:ff:ff
inet 192.168.0.59/24 brd 192.168.0.255 scope global enp4s0
valid_lft forever preferred_lft forever
3: wlp3s0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
link/ether e0:b9:a5:7e:eb:6a brd ff:ff:ff:ff:ff:ff
4: docker0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default
link/ether 02:42:39:74:ec:4b brd ff:ff:ff:ff:ff:ff
inet 172.17.0.1/16 brd 172.17.255.255 scope global docker0
valid_lft forever preferred_lft forever
6: vethda1f305@if5: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master docker0 state UP group default
link/ether 9a:c3:dc:8e:7d:17 brd ff:ff:ff:ff:ff:ff link-netnsid 0
--------------------------------------------------------------------------------
Interface information enp4s0:
=============================
Settings for enp4s0:
	Supported ports: [ TP MII ]
	Supported link modes:   10baseT/Half 10baseT/Full 
	                        100baseT/Half 100baseT/Full 
	                        1000baseT/Half 1000baseT/Full 
	Supported pause frame use: No
	Supports auto-negotiation: Yes
	Advertised link modes:  10baseT/Half 10baseT/Full 
	                        100baseT/Half 100baseT/Full 
	                        1000baseT/Half 1000baseT/Full 
	Advertised pause frame use: Symmetric Receive-only
	Advertised auto-negotiation: Yes
	Link partner advertised link modes:  10baseT/Half 10baseT/Full 
	                                     100baseT/Half 100baseT/Full 
	                                     1000baseT/Full 
	Link partner advertised pause frame use: Symmetric
	Link partner advertised auto-negotiation: Yes
	Speed: 1000Mb/s
	Duplex: Full
	Port: MII
	PHYAD: 0
	Transceiver: internal
	Auto-negotiation: on
	Supports Wake-on: pumbg
	Wake-on: g
	Current message level: 0x00000033 (51)
			       drv probe ifdown ifup
	Link detected: yes
--------------------------------------------------------------------------------
Driver information enp4s0:
==========================
driver: r8169
version: 2.3LK-NAPI
firmware-version: rtl_nic/rtl8168e-2.fw
expansion-rom-version: 
bus-info: 0000:04:00.0
supports-statistics: yes
supports-test: no
supports-eeprom-access: no
supports-register-dump: yes
supports-priv-flags: no
--------------------------------------------------------------------------------
Interface information vethda1f305:
==================================
Settings for vethda1f305:
	Supported ports: [ ]
	Supported link modes:   Not reported
	Supported pause frame use: No
	Supports auto-negotiation: No
	Advertised link modes:  Not reported
	Advertised pause frame use: No
	Advertised auto-negotiation: No
	Speed: 10000Mb/s
	Duplex: Full
	Port: Twisted Pair
	PHYAD: 0
	Transceiver: internal
	Auto-negotiation: off
	MDI-X: Unknown
	Link detected: yes
--------------------------------------------------------------------------------
Driver information vethda1f305:
===============================
driver: veth
version: 1.0
firmware-version: 
expansion-rom-version: 
bus-info: 
supports-statistics: yes
supports-test: no
supports-eeprom-access: no
supports-register-dump: no
supports-priv-flags: no
--------------------------------------------------------------------------------
Interface information wlp3s0:
=============================
Settings for wlp3s0:
	Link detected: no
--------------------------------------------------------------------------------
Driver information wlp3s0:
==========================
driver: ath9k
version: 4.14.0-0.bpo.3-amd64
firmware-version: N/A
expansion-rom-version: 
bus-info: 0000:03:00.0
supports-statistics: yes
supports-test: no
supports-eeprom-access: no
supports-register-dump: no
supports-priv-flags: no
--------------------------------------------------------------------------------
Interface information docker0:
==============================
Settings for docker0:
	Link detected: yes
--------------------------------------------------------------------------------
Driver information docker0:
===========================
driver: bridge
version: 2.3
firmware-version: N/A
expansion-rom-version: 
bus-info: N/A
supports-statistics: no
supports-test: no
supports-eeprom-access: no
supports-register-dump: no
supports-priv-flags: no

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Code

Getting SMBIOS data from sysfs.
SMBIOS 2.6 present.


Handle 0x0002, DMI type 2, 15 bytes
Base Board Information
        Manufacturer: ASUSTeK COMPUTER INC.
        Product Name: E35M1-I DELUXE
        Version: Rev X.0x
        Serial Number: MT7016017400557
        Asset Tag: To be filled by O.E.M.
        Features:
                Board is a hosting board
                Board is replaceable
        Location In Chassis: To be filled by O.E.M.
        Chassis Handle: 0x0003
        Type: Motherboard
        Contained Object Handles: 0

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crimsdings · 15. Dezember 2018

additional info - i only have 2GB ram installed currently because its a test setup. i can rule out the switch as an issue because i have multiple gigabit devices that run fine on the very same switch - also uploading speeds are as expected. i tried multiple disks so its not the disk. the cpu does hit about 80% but never more. i tried multiple clients from linux to windows - same behaviour. kinda lost where to start with debugging the issue. i can submit further outputs if needed. i can rule out the clients aswell because I have other NFS shares that work as expected

crimsdings · 15. Dezember 2018

i can rule out network issues:

Bash

root@openmediavault:~# iperf -s -p 12345
------------------------------------------------------------
Server listening on TCP port 12345
TCP window size: 85.3 KByte (default)
------------------------------------------------------------
[  4] local 192.168.0.59 port 12345 connected with 192.168.0.100 port 33825
[ ID] Interval       Transfer     Bandwidth
[  4]  0.0- 0.9 sec   100 MBytes   886 Mbits/sec
[  5] local 192.168.0.59 port 12345 connected with 192.168.0.100 port 33831
[  5]  0.0- 9.4 sec  1000 MBytes   889 Mbits/sec

guzzisti · 15. Dezember 2018

No clue what might be wrong at the moment, just a question:
Did you upgrade your installation to the lastest packages (via webgui or apt cli)?

My box is running on kernel 4.18.x and my AMD E1-2100, which seems to have a similar performance than slightly the older E-350, easily goes above 100MB/s for CIFS and FTP.

CPU-usage seems a bit high for me for reading from disk, do you use an encrypted volume or have the antivirus plugin with on-access-scan enabled?

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