Poor samba performence in Debian Guest in Proxmox?

Mucip

Renowned Member
Apr 4, 2016
63
7
73
Hi,
I use Proxmox 8.1.3 and installed as a guest Debian and Window Server.

I use Debian as File Server. But unfortuntely it has poor speed performance. I need to know the reason;

1- From Samba Server?
2- From my network cable, switch etc. speed/problem?
3- From Proxmox network adapter?

But I check everything is good in Proxmox summary screen all is fine.

Can you advice me about controling of this speed problem with Samba?

Regards,
Mucip:)
 
So we need a bit (a lot) more information from you.

  • VMconfig qm config <vmid>, is it an container then pct config <vmid>
  • The current speed at which files are copied.
  • What do you test with IPERF3 between two machines
  • Have you tested an other protocol like NFS?
  • Your networkspeed, how is the VM connected with physical network interface?
  • Networkspeed of your client that transfer files from and to the samba server
  • What speed should be achieved?
  • Your Proxmox network configuration cat /etc/network/interfaces
  • Debianversion where is Samba running now
  • Storagetype and Array Setup in Proxmox (how many drives, Raidlevel?...)
 
  • Like
Reactions: Kingneutron
Hi,
Please see below;

** Config:
boot: order=scsi0;ide2;net0
cores: 4
cpu: x86-64-v2-AES
ide2: none,media=cdrom
memory: 204800
meta: creation-qemu=8.1.2,ctime=1706255679
name: Debian1
net0: virtio=BC:24:11:34:FE:0C,bridge=vmbr0,firewall=1
numa: 0
onboot: 1
ostype: l26
scsi0: diskSSD:100/vm-100-disk-0.qcow2,iothread=1,size=4T
scsihw: virtio-scsi-single
smbios1: uuid=58d54885-ac9b-405e-8a49-a066359e6c58
sockets: 2
startup: order=1
vmgenid: 042ec1ed-9586-4d9f-9e28-fbb9c8969a45

******
About speed: I copied 354 MB folder from samba to Windows in 18 seconds.

******
First time I heard IPERF3. I think I need to install IPERF3 on windows client, do I?
******
I have Debian Linux Samba server and using Windows clients only. I can not test speed on NFS unfortunatelly. I don't have Linux client.
******
The Lenovo server which is installed Proxmox has 10 G fiber ethernet. Ofcourse I have many switches, hubs on the network. Speed may be slow because of network hardware?
******
I tested copy speed 354 MB in 18 seconds.
******
I need more speed. Because I know we have 10 G ethernet must be more faster?
******
Proxmox network config:
root@baris:~# cat /etc/network/interfaces
auto lo
iface lo inet loopback

iface ens9f0 inet manual


iface ens9f1 inet manual

iface ens9f2 inet manual

iface ens9f3 inet manual

iface ens3f0np0 inet manual

iface ens3f1np1 inet manual


auto vmbr0

iface vmbr0 inet static
address 192.168.12.199/24
gateway 192.168.12.1
bridge-ports ens3f1np1
bridge-stp off
bridge-fd 0

source /etc/network/interfaces.d/*


******
Samba running on Debian 12.5

******

Proxmox installen on M2 NVE . And Debian and windows guests installed on Server 4xSSD discs. 2 disc are RAID 0 and RAID 1 to each 2 discs.

*****
In my opinion it shoul be more and more faster with this hardware?!...

Regards,
Mucip:)
 
Last edited:
Hi,
May poor performance be because of my Proxmox config?
Core? Ram? Disk? etc...

I have 16 core and 2 socket (ThinkSystem SR650 V2 Intel Xeon Silver 4314 16C 135W 2.4GHz Processor)
512 GB RAM
I have Debain as File server and Win2024 as SAP/MSSQL server.
What do you advice for quest configuration RAM and CPU?

Regards,
Mucip:)
 
Last edited:
VM Config looks good and the server have enough resources. Good :)

About speed: I copied 354 MB folder from samba to Windows in 18 seconds.
Yes, that is really very slow.

First time I heard IPERF3. I think I need to install IPERF3 on windows client, do I?
Yes, please test your network speed in advance.
https://www.techtarget.com/searchnetworking/tip/How-to-use-iPerf-to-measure-throughput
https://iperf.fr/iperf-download.php

The Lenovo server which is installed Proxmox has 10 G fiber ethernet. Ofcourse I have many switches, hubs on the network. Speed may be slow because of network hardware?
This is also a possibility.

In my opinion it shoul be more and more faster with this hardware?!...
Yes, it should go full blast.
 

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