Ubuntu Networking :: Expected Transfer Rate For Gigabit Ethernet
Sep 26, 2010
I have 2 10.04 machines connected through a switch, both with gigabit on board ethernet. Both machines show 1000 Mb/s connections.When I transfer large files (gig plus up to multi-gig) the maximum I get according to ftp 11472 kB/s.I did rough computer school math in my head and that seems low but I'll admit I know very little about network transfer rates.My question is what transfer rates should I expect to get between the 2?
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Apr 1, 2010
We have a Linux box which acts a a file server. Currently, files and directories are exported using NFS.At the moment, we are a bit concern on its data transfer performance. FYI, we are using a embedded Gigabit Ethernet port on the file server. We ran a few simple write tests between NFS client (also utilizes GigE port) and the NFS server. In these tests, both NFS server and client are both connected directly to each other with a Cat5E cable. Unfortunately, the write/transfer speed results are not as per our expectation. It scores roughly about 11-12MByte/s, where as theoretically Gigabit Ethernet transfer rate is able to reach up to approximately 120MByte/s.I wouldn't expect to reach the theoretical max transfer rate (it would be great if we can , but I would appreciate if you guys can share with us in terms of the following :
1) What's the practical max data transfer rate which you guys managed to observe in a normal Gigabit based connection? What about jumbo frames configuration?
2) Is there any additional tuning/configuration we need to do within the OS to reach those practical max data transfer rate figure?
3) Does PCI-e / system bus plays a role in achieving this speed? For example, we are using the embedded GigE port and we heard some people says embedded ports are actually sharing the system bus and resources with other devices, which might adds into performance issue. Correct me if I'm wrong.
4) Does converting to Cat6 cabling will guarantee an increase in the data transfer performance?
5) In the future (once we are clear on how much single GigE transfer rate we can go) , we are looking into doing bonding since that the NFS server's shared directory/volume read-write speed is way much higher (i.e 400-600MByte/s). Will bonding allow us to achieve higher NFS read/write speed? What are the bonding modes best used for this purposes? Appreciate if anybody who has experience in doing bonding for NFS can share their experience.
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Mar 2, 2011
I am struggling trying to understand the reason for a fairly slow data transfer rate between two machines. ( tried point to point and also via a 1 gb switch )
One is nfs/http/ftp server ( with raid1 and lvm on top ), the other one my desktop pc. Both OS with default options, no changes to kernel in proc or other sort of thing.
Hardware is full recognized and perfectly working: The server has 4gb ram, Intel Core 2 Duo CPUE6850 @ 3.00GHz, 1000Mb/s NIC card and Lucid 10.04 64 bit, 250Giga Hard disk. The client has 3gb ram, Intel Core 2 CPU 6320 @ 1.86GHz, 1000Mb/s NIC card and Ubuntu Maverick 32bit , 150Gb Hard disk.
Raw data is good:
gettons@gettons-desktop:~$ iperf -c MYSERVER
------------------------------------------------------------
Client connecting to MYSERVER, TCP port 5001
[Code].....
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Jul 4, 2010
My friend bought an old hard drive. He noticed something with the hard drive that it was just replaced with a SATA socket. So meaning, the SATA socket was soldered to the PATA hard disk to replace the PATA socket to SATA socket to make it a SATA.
Now the question is:
1. Does the Transfer Rate of the harddisk (that has been replaced from PATA socket to SATA socket) would be SATA transfer rate? OR would still be PATA transfer rate?
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Sep 13, 2010
I have been doing a variety of speed tests on my ethernet connection in preparation for upgrading my service and found that the connection on my dell d630 is not getting expected download speeds. In fact, it is getting about a third of the expected speed. This machine is running Lucid. It also dual boots Windows Vista. Checking Vista a moment ago, the speed is fine. What could be the problem that is preventing the ethernet from working at 100%?
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Jun 8, 2010
With what command i can check whether my Ethernet card supports gigabit speed Ethernet or not?
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Apr 20, 2010
I am using fedora core 2. I used the oldest version of fedora just because im running only 1 system, my specification is: HP compaq PC,pentuim4, 512mb memory, 40gig hdd, Intel board. I have two units same spec..windows xp and the other one is fedora 2. The windows xp normally detect the lan card, but when I try to fedora2, I try to active it and seems no lan card detecting,. How to detect broadcom nextreme gigabit ethernet to my fedora 2 OS???
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Mar 27, 2010
I have a LaCie NAS which is mounted on my main linux machine over a wifi LAN using the cifs file system. I would stupidly expect the transfer rate between my hard drive and the NAS to be limited by the Wifi speed (54 Mbps) but when I transfer files, the speed tops at 1.9 Mb/s which is roughly 15.2 Mbps. The most puzzling thing is that when I do multiple simultaneous transfers, I reach approximately 3MB/s in total but none of the individual transfers goes beyond 1.8. Does anyone have an idea about what is keeping the transfer rate so low?
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Feb 8, 2010
Cost effective (the people want cheap) solution to increase server storage space with as little impact on throughput (what I want) as possible. I have a server that sends instructions to 20 clients to perform certain tasks. The clients send gigs of data back to the server for storage.
BACKGROUND INFORMATION
Network: Gigabit Ethernet
Clients: (20) HP, Solaris, Linux
Linux Server: Dell R805 PowerEdge (QUAD Core Athlons 16 gigs of ram, 4 gigabit ports.
Selected directories are mounted (NFS) by clients. One directory to be mounted by the clients contains executable files. Mount commands are sent from the server (rsh) to the clients. Yes I know (ssh) but this is how the software was originally written so let's go with it.
The clients then receive commands to execute the binaries contained within the mounted directory. The binaries basically create an image of the clients filesystem including special applications. The client then sends the files and directories to the server which stores this �image�. This process can be reversed to restore a client to the initial baseline image.
In a nut shell, 20 clients are sending gigs of data to the server for storage. I need to attach a NAS (gigabit) to extend the storage capability of the server. The server would mount (NFS) to the hard drives on the NAS. The NAS, configured as a �direct attached storage� device (DAS), means the storage device is connected directly to the server and not the network (which makes it a DAS). This would provide direct storage expansion for the server. However, this configuration cannot be a bottleneck that significantly hinders performance.
Clients <---data---->Server<----storage---->DAS/NAS
1) Will a low end NAS (gigabit port) work? (NetGear 1TB ReadyNAS Duo, RND2110-100NAS) or something with a higher rated throughput (QNAP TS-239 Pro II)
2) Low end won't work, go with �?
3) Does the processor on the NAS play any role that would determine the performance of this configuration given that the server would mount directly to a directory on this device (DAS/NAS)?
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Apr 15, 2009
Can anybody tell me what is rate control and rate control mode of operation (in data link layer) in an Ethernet interface?. Does it have anything to do with auto negotiation in Ethernet?
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Nov 25, 2010
I have a FC13 box that has both Gnome and KDE sessions installed.
I have noticed on the KDE session that data transfer rates are slower than when I use Gnome.
In Gnome, I can transfer files between my FC13 machine and my Ubuntu 10.04 pc at a rate of 6.5 MB/s (52 Mb/s if my maths is correct), but in KDE the rate is only 3.5 MB/s (28 Mb/s).
"ethtool eth0" shows my NIC speed as 100 Mb/s. Obviously I am not hitting anywhere near that speed in either session, (a separate article may be happen in the future to address that), but I am curious as to why KDE is that much slower for file transfer.
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Jan 28, 2011
I have not tried this, and I am only wondering about the result.Let's say that I have a PC/Laptop with two network devices: an ethernet and a wireless. Can I connect both of the to the same network (if this network allows both connection) to increase the transfer rate between the PC/Laptop and the server???
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Apr 21, 2011
I have an ASUS P5Q PRO motherboard with an integrated Atheros AR8121/AR8113 PCI-E Gigabit Ethernet Adapter.I installed Ubuntu 10.04 "Lucid" 64bit Kernel version 2.6.32.21 I have read that the driver isn't in the kernel, but there's a strange thing :
First if I try to run lspci from command line it doesn't reports Atheros Ethernet Controller.
Second If I try to run lshw -C network from command line it doesn't reports Atheros Ethernet Controller.
Third if I run ifconfig it only returns my loopback address.
Can I suppose that my Ethernet Intel Gigabit Controller is broken or that Atheros driver is missing?
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Sep 20, 2010
from [URL]
i did the following
[root@localhost ~]# lspci | grep Wireless
0c:00.0 Network controller: Intel Corporation Wireless WiFi Link 5100
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Apr 18, 2010
I am running Ubuntu Linux 9.10 on my laptop and desktop. I would like to transfer files from one to the other using an Ethernet Cross Over Cable. Is there software already installed in the bundle, that would allow me to setup network drives for each machine when the cable is connected. Also how would I setup the configuration.
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Mar 3, 2010
I installed ubuntu server 9.10. During the install the onboard 10/100 land card was automatically installed and was used for updating packages. I just put in a DGE-530T gigabit ethernet card. I can see it recognized under lspci.01:07.0 Ethernet controller: D-Link System Inc DGE-530T Gigabit Ethernet Adapter (rev 11) (rev 11). It does not show up under ifconfig. The CD came with linux drivers. The readme talked about recompiling the kernel and a whole bunch of other stuff. Google was equally confusing. What do I do?
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Feb 25, 2010
I want to transfer the audio file on linux machine using Ethernet port, is it possible?
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Feb 14, 2011
I'm having issues with Ubuntu 8.04 to see my Intel 82574L ethernet card. Ubuntu is not detecting it at all.
I downloaded the drivers from
[URL]
copied it to the server, untarred, make install ,and now i'm getting notifications that kernel-devel is not installed. I installed linux-headers from the install cd ( ihave the alternate and server one), but i cannot find any kernel-devel or linux-kernel-devel. The driver still does not want to build after installing linux-headers.
I need to use Ubuntu 8.04 due to some specific requirements, do i need the network cards to work.
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Aug 5, 2011
I'just installed ubuntu 10.04 LTS on my new laptop(ACER aspire 5750). Ubuntu installed perfectly. Every things working ok but, it can't able to detect my CABLE MODEM.
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Feb 12, 2016
I'm having a strange problem with data transfers between systems. I have a file server + my desktop. Both are running Debian 8.3. I have a samba share running on the file server and I mount the shares on my desktop on boot via /etc/fstab
When I copy a file using the nautilus from my home folder (on my HDD) on my desktop to the mounted network location, my transfers start out at gigabit speeds 80MB/s-90MB/s for a couple seconds and then drop down to about 8MB/s
But when I terminate the transfer and then use scp to transfer the same file, I get consistent gigabit speed throughout the transfer. I am not sure what is going on.
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Sep 12, 2015
My laptop only has a 100Mbit ethernet port, so I bought two external USB gigabit ethernet dongles in the hope of getting faster ethernet speeds. I have never had trouble with Linux supporting ethernet before, but neither of these devices are working. One is an ASIX AX88179 (by TrendNet) and the other is a Realtek RT8153 (by Anker). When I plug these devices in, I get network devices called enx00e04ca82300 or enxd8eb97b61e4d (instead of eth0/eth1 as I would expect).
I can manually set an IP address with "ifconfig enx00e04ca82300 x.x.x.x up" and manually add a route and my network connection works at gigabit speeds. However, the long enx... network device name does not appear to be valid in some sense: tools like dhclient or iptraf or network-manager fail with messages like "no such device" (well, network-manager just hangs). I don't know if it's because the name is so long or because they are not fully registered inside the kernel.
I have vmware workstation installed, and it does some strange things with network devices (setting up bridges for everything). I have disabled its services and see the same behaviour. This looks like a kernel bug to me but it's possible it is a vmware issue. vmware works fine with my wireless and 100Mbit ethernet (eth0 and wlan0).
Realtek device
Some dmesg for the Realtek device:
Code: Select all[10264.619420] usb 4-3.1.1: reset SuperSpeed USB device number 4 using xhci_hcd
[10264.634651] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff8800c4221a00
[10264.634653] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff8800c4221a48
[10264.634655] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff8800c4221a90
[10264.647842] r8152 4-3.1.1:1.0 eth0: v1.06.0 (2014/03/03)
[10264.647902] usbcore: registered new interface driver r8152
[10271.452198] IPv6: ADDRCONF(NETDEV_UP): enx00e04ca82300: link is not ready
[10275.094334] IPv6: ADDRCONF(NETDEV_CHANGE): enx00e04ca82300: link becomes ready
The Realtek device often crashes after just a few gigabytes have been transferred, with dmesg like this:
Code: Select all[10485.761603] net_ratelimit: 10 callbacks suppressed
[10485.761618] r8152 4-3.1.1:1.0 enx00e04ca82300: Tx status -71
[10488.694340] r8152 4-3.1.1:1.0 enx00e04ca82300: Tx status -71
[10488.711352] r8152 4-3.1.1:1.0 enx00e04ca82300: Tx status -71
[code]...
I have not investigated the ASIX device as much. However, my original 100Mbit ethernet has an ASIX chipset (AX88772) and that works perfectly. I have not observed the ASIX device crashing yet so I am using that for now (haven't used it for long yet though). But as before the device name appears to be invalid and I cannot run tools like dhclient. why two gigabit adapters with completely different chipsets would show up with long device names and support low-level stuff like ARP, ping, and static IPs, but fail with dhclient & network-manager? And the Realtek device seems to like crashing too.
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Aug 12, 2010
I have spent them with Fedora and liked it a lot. Today I decided to install CentOS as this looks like something I would like to be using in the future. However a problem I could not solve came right at me after the first boot.
I have one eth0 device which is onboard lan and that was correctly recognised and activated. The second device is F5D5055 Belking USB Gigabit ethernet adapter. There was no problem with it whatsoever under Fedora. According to all the info it should be automatically recognised on kernel 2.6.14 and later. However when I plug it into the USB port, I can see its correct name in the device manager but it is not recognised as a network device. I have configured my Fedora as a firewall/router for my lan and definitely want to use that interface.
Hopefully without needing to do anything in the realm of compiling kernel, cause that is where my half a day long attempt to fix the problem left me.
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May 11, 2011
Iam using public ftp server,the server file transfer rate is very very slow & the server is also very slow,In which way can i check the server to make it fast,can any one give sugession on this.
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Oct 3, 2010
I would like to know if it is normal to experience 10MB/s data transfer rates during copying between partitions on my local hard drives (Toshiba 250GB 5400rpm SATA) while having three times faster (30MB/s) transfer rates between local partitions and USB drives (Kingston 8GB).
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Mar 23, 2011
Sd card transfer rate is 133mb/s and ide transfer rate is same 133mb/s. Using no extra wire and direct connection, why is that sd card is much gradual than ide?
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Nov 8, 2010
Just a heads up to others. There is a kernel regression in the 2.6.35 kernel with regard to, some but not all Intel Gigabit ethernet adapters using the e1000e driver. After an otherwise successful upgrade from fedora 13 to 14, no ethernet connection could be made while using the upgraded 2.6.35 kernel that comes with fedora 14. The 2.6.34 fedora 13 kernels work fine and were fortunately still available after the upgrade.
I have personally seen the identical malfunction on all 2.6.35 kernels I've tried with both Arch and Aptosid and have seen similar reported problems on the Gentoo forum. In each case, going back to a 2.6.34 or upgrading to a 2.6.36 kernel solved the problem so this is almost certainly a kernel issue. My onboard Intel Gigabit ethernet adapter is:
$ lspci -vv | grep Ethernet
00:19.0 Ethernet controller: Intel Corporation 82566DC Gigabit Network Connection (rev 02)
I believe the intel ICH8 chipset motherboards are the ones primarily effected.
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May 12, 2010
I have a dual boot system (Suse 10.0 and Windows XP Pro) in my notebook. My notebook is toshiba m358, which has a Marvell Yukon Gigabit Ethernet Network Card (Marvell 88E8072) on it. My problem is this: in Windows XP Pro, the network card works well, but in openSUSE, the light on the network card does not turn on. I believe that there is no driver for the network card. I have tried several ways to solve this problem:
1. Download Marvell 88E8072's driver from "[URL]", whose name is "install_v10.85.3.3.tar.bz2", and then install it with following commands:
Code:
# tar xfvj install_v10.85.3.3.tar.bz2
# cd DriverInstall
# ./install.sh .....
Code:
# modprobe sk98lin
# WARNING: Deprecated config file /etc/modprobe.conf, all config files belong into /etc/modprobe.d/.
After I reboot the openSUSE, the light of network card is still off.
2. Follow "[URL]" to configure the Marvell 88E8072. It also does not work.
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Jul 20, 2010
Actually, the title I was looking for was Belkin Gigabit Ethernet ExpressCard not seen on Dell Precision M6500 with CentOS 5.5 _when system boots with no link on this card_. When I boot this system with a cable connected to the Ethernet port, the card shows up (dmesg, lspci 0e:00.0 and ifconfig). When I boot it with nothing connected, it's like it doesn't exist. I know I could make it work with a loopback plugged in at all times, but am looking for a more graceful solution. Here are messages logs from when it's recognized
Jul 19 15:14:23 mss kernel: sky2 driver version 1.22
Jul 19 15:14:23 mss kernel: sky2 0000:0e:00.0: v1.22 addr 0xf6afc000 irq 193 Yukon-2 EC rev 2
Jul 19 15:14:23 mss kernel: sky2 eth0: addr 00:00:5a:11:45:5b
[code]...
Update: Should have been a little clearer - this card has the Marvell Yukon chipset. I'm trying to identify the part number without ripping out the casing.
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Apr 25, 2010
anyone know why this would happen? I ran the following dd command:
Code:
dd if=/dev/sdb1 of=hard/old_dell_desk_part1.img
a USB external drive was mounted to the 'hard' directory with the standard mount command. it is a ntfs-3g filesystem. it is a mechanical drive.
same behavior with solid state memory (flash, and solid state hard drives)
3693492+0 records in
3693492+0 records out
1891067904 bytes (1.9 GB) copied, 274.562 s, 6.9 MB/s
[Code].....
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Apr 6, 2011
I checked task manager the other day and I discovered that on the network history monitor some bits and bites were transfered in a repeating pattern (like a beacon). The transfer rate (when active) is about 149b/s receiving. And about 70b/s sending. What is this?
No Internet-related program was running from my part...In an attempt to pinpoint what was causing this, I occidentally removed the tools located left and right on the time and date. I've rebooted since but still no tools. The 0/I button is also gone.
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