File transfer rate under 10.4.8

Hi,
I am getting a transfer rate of about 8-9MB per sec between MacMini (Core Duo) and MBP using AFP. The Macs are directly connected using Cat 5E cable, and both are set to 1000bit/sec under Networking. Jumbo frame is used.
Both are running 10.4.8, with the latest patches.
It seems that 8-9MB/s is very low when compared to other posts within discussions.apple.com, that, it is typical to get 40-45MB/s under gigabit Ethernet.
Any comments, and results from the same set up?

Thx for your comments.
I've set up a RAM disk in each Mac, and tried copying a 450MB file between them.
Viola! The transfer rate is now ~25MB/s!!! Still ~50% of the *normal* rate, but it is much improved.
OK, the 8-9MB/s rate is the read and write limit of the HD in the Mini. My MBP has a 7200RPM drive, and should not be the bottleneck.
Thx all!

Similar Messages

How to achieve the maximum file transfer rate from PXI to local host?

I will have to copy a huge amount of data (as big as 50 GB) from a PXI-8106 unit on site to a laptop. Currently it would take several hours. It is critical to max out the data transfer rate.
The standard method we've been using is just drag and drop using Windows Explorer via FTP. I tried to use FTP VIs with Filezilla Server as well but the transfer rate is only like 1.5 MB/s. Is this normal? Once I saw it was 3.0 MB/s but for some reason, that isn't happening now.
For another option, I tried to transfer data to a USB flash drive but it's even slower. As far as I know, USB 2.0 transfer rate is supposed to be around 60 MB/s but why would it be slower than 1.5 MB/s? What could be the speed limiting factor in my file transfer setup?
Any tips on improving file transfer rate would be appreciated!

Sustained 40 MB/s? That is my dream speed! The maximum speed I've ever seen here was about 25 MB/s, which is still very good, and that happened only after copying back and forth, which I explained above. Let me go through what I did with screencaps first.
These are the test tdms files to transfer in the PXI: an original file witten in the PXI and its copy file. I copied the original file from PXI to laptop and renamed it (added '_copy') and then copied it back to PXI.
FTP module is transferring the original file to the Filezilla server on laptop. Note the low speed.
FTP module is transferring the copy file to the Filezilla server on laptop. Note the higher speed.
This is the FTP sub VI I'm using. It transfers files in sub-folders (one level lower), too. The data connection is set to 'passive' on the FTP Put Multiple Files VI but it doesn't seem to make any difference. I attach the sub VI.
You tried the file transfer with a 500 MB text file. Would there be any difference if the file type was tdms? Would the RAM size matter? It is 2GB here.
And the LED is orange, which means Gigabit.
Another question: Is there any way to programmatically stop file transfer in progress? Currently, I just have to restart the PXI.
Thank you!
Attachments:
FTP.vi ‏40 KB

File transfer rate is very bad on my new W520. Help needed....

Hello,
I have a usb 2.0 hi speed flash drive which has transfer rates of 15Mb/s. But When I am trying to copy a movie (under 3 gb) from my W520 to the flash drive the speeds that I observe is 6Mb/s which is very slow. Initially, I though I have an issue with the flash drive but when I used my 3 year old dual core xps laptop to copy a file, I observed the speed of 15 Mb/s. If not high speed atleast I am expecting to see 15Mb/s with my W520. Really wierd!!!
BTW... I am running my W520 at "Maximum Performance" power profile. And I see my clock speed always at less than 1 ghz while copying the file but when i do other stuff i see my clock speed hitting 3.2 ghz....
Any thoughts on whats going on???
My system is Thinkpad w520 2710 with 8 gb of ram....
Thanks
Robustm

Hi robustm
From what I know, the problem lies with Windows 7 (throttling)
How about copying to USB drives? the speed should be around 30+ - 60MB, depending on the file type also.
1. You could also try updating Intel Chipset driver
http://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&ProdId=816&DwnldID=20019&ProductFamily=Chipse...
et+Software&ProductProduct=Intel%C2%AE+Chipset+Software+Installation+Utility&lang=eng
2. You could try using SpeedGuide TCP Optimizer, which resolves Network Throttling and Slow file transfer problems for some. (Set as Optimal)
http://www.speedguide.net/downloads.php
3. You could go to Computer Management (compmgmt.msc), Device Manager, Disk drives, double-click your USB device, policies, set as Performance.
* Note: This may require you to Safety Remove the device, due to caching for performance.
Hope it helps
Happy Holiday
Peter
ThinkPad: W520 (4284-A99)
=============================================
Does someone’s post help you? Give them kudos as a reward, as they will do better to improve
Mark it as solved if the solution works for you, so it could be reference for others in the future
Dolby Home Theater v4 (Essential/IdeaPad/ThinkPad)
http://forums.lenovo.com/t5/General-Discussion/Dolby-Home-Theater-v4-for-most-Lenovo-Laptops/td-p/62...

FTP/SFTP/FISH (etc) slow file transfer rate over LAN

Hi everyone,
I have a problem with transferring files over my home network that has been bothering me for quite some time.
I have a 802.11n router which should provide me with the transfer rate up to 150 Mbps (afaik). When I download files from the Internet, 3 MB/s data transfer rate is of no problem.
However, when receiving or sending data over LAN, the transfer rate is much slower (1.8 MB/s).
My rough guess is (after reading some papers on this topic) that TCP protocol is causing this (its flow control feature to be exact), since TCP max window size is too small on Linux by default.
So, setting TCP max window size to a greater number should solve this.
I tried putting this:
# increase TCP max buffer size setable using setsockopt()
# 16 MB with a few parallel streams is recommended for most 10G paths
# 32 MB might be needed for some very long end-to-end 10G or 40G paths
net.core.rmem_max = 16777216
net.core.wmem_max = 16777216
# increase Linux autotuning TCP buffer limits
# min, default, and max number of bytes to use
# (only change the 3rd value, and make it 16 MB or more)
net.ipv4.tcp_rmem = 4096 87380 16777216
net.ipv4.tcp_wmem = 4096 65536 16777216
# recommended to increase this for 10G NICS
net.core.netdev_max_backlog = 30000
# these should be the default, but just to be sure
net.ipv4.tcp_timestamps = 1
net.ipv4.tcp_sack = 1
in /etc/sysctl.conf but to no avail.
So either there is no problem with the max window size setting, or the Linux kernel ignores it (maybe because /proc is no longer supported?).
Thanks for any neat ideas.
Last edited by Vena (2012-06-01 21:48:14)

Bump? No ideas whatsoever?

FILE TRANSFER RATE SLOW FROM WIN SERVER 2012.

Dear Team
The File Transfer problem From my Windows Server 2012R2 (File server) showing 200KB transer rate in 1g network. Please help

Hi,
What's the operation system are you using, Windows XP/2003 or Windows 7/8/2008/2012?
You can test to disable SMB2/3 and see if issue is related:
Set-SmbServerConfiguration -EnableSMB2Protocol $false
See:
http://support.microsoft.com/kb/2696547/en-us
Note: This is just for testing and you can enable it after testing.
If it is SMB related, try to disable the TCP Chimney Offload, Receive Side Scaling and Network Direct Memory Access features.
Information about the TCP Chimney Offload, Receive Side Scaling, and Network Direct Memory Access features in Windows Server 2008
http://support.microsoft.com/kb/951037
Here are the steps to disable RSS, TCP Chimney Offload and NetDMA:
netsh int tcp set global rss=disabled
netsh int tcp set global chimney=disabled
In HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters, double-click the EnableTCPA registry entry.
Note: If this registry entry does not exist, right-click Parameters, point to New, click DWORD Value, type EnableTCPA, and then press ENTER.
To disable NetDMA, type 0 in the Value data box, and then click OK.
Let us know if issue still exists.
Meanwhile we have an Forum FAQ article which provided some suggestions and quick-fixes for network slowness issue. Please see if it could help:
[Forum FAQ] Troubleshooting Network File Copy Slowness
http://social.technet.microsoft.com/Forums/windowsserver/en-US/7bd9978c-69b4-42bf-90cd-fc7541ccb663/forum-faq-troubleshooting-network-file-copy-slowness?forum=winserverPN
If you have any feedback on our support, please send to [email protected]

WRT610N Mac & PC - 2mbps wireless LAN file transfer rates

Equipment:
Linksys WRT610N connected to Motorola SB5101 Cable Modem
MacPro Dual Quad Core 3.0GHz XEON with three Western Digital drives set up on RAID 0 using internal Airport 802.11N.
Dell Inspiron 2600 - piece of crap but still get it done with Linksys WPC600N wireless card.
Sony PS3 connected to WRT610N via ethernet cable
DirecTV HR20-100 DVR connected to WRT610N via ethernet cable
Problem is this:
Internet speeds are incredible. LAN speeds are awful.
I was transferring a 914MB folder from the Dell Laptop to my MacPro.
The transfer took 14 minutes. That averages a paltry 2 megabits per second.
The wireless card on the laptop shows around 130mbps with excellent connection strength. My MacPro also is excellent connection. I guess the laptop has a 5400rpm drive. I've been able to stream video to my PS3 from the laptop using my OLD wcg200.
Is there something I can do to speed up the LAN connection? I haven't tried to stream to my PS3 yet. The WCG200 that I had wasn't all that good so I replaced it with the WRT610N. I'm starting to regret my decision.
thank you in advance
WRT610N | WPC600N | Dell Inspiron 2600 -> Win XP | Mac Pro -> OS X 10.4.11, 10.5.4 & Win XP via Parallels

More testing... I built a crossover ethernet cable to directly connect the Dell to my MacPro. The LAN speed was 100mbit due to limitation of the Dell network adapter. Speeds were between 46 and 82mbps. MTU was 1500 MTU at 1300 and 1200 yielded no additional benefit. I disconnected the ethernet cables and went through the WRT610N using my Airport Wireless N and the WPC600N on the Dell. Speeds max'd out at 1 to 2mbps. I must say the Linksys WRT610N isn't playing fair...or am I missing something else in the mix?
WRT610N | WPC600N | Dell Inspiron 2600 -> Win XP | Mac Pro -> OS X 10.4.11, 10.5.4 & Win XP via Parallels

Slow transfer rate to time capsule - 2nd generation - mb pro 5ghz

alright
have time capsule with dual networks, macbook pro with n enabled connected to 5ghz network with full bars, yet while copying files to the time capsule, it seems slow
500kbs per second
about 7 min to copy a 744mb file to time capsule (according to finder)
time capsule connected via ethernet to 2wire 2701hg modem + wireless router ( wireless turned off )
configure ipv4 using : dhcp
ethernet wan port: automatic
connection sharing : share a public ip adress
ipv6 : link local only
wireless options
country - mexico
multicast rate - high
transmit power - 100%
use wide channels
any ideas?
thanks in advance

Hi,
In the Manual Setup->Advanced->Logs and Statistics page of Airport Utility you'll find information on wireless signal quality for each client connected. Primarily, signal quality will determine the connection speed of your file transfers, the best you can do to improve things is to find a wireless channel with the least interference, Manual Setup->Wireless.
My Macbook Air connection is showing -66 Signal, -89 Noise, 122 Rate which gives me a wireless file transfer rate in bursts from 500kbps to 22Mbps. Time Capsule is not the fastest combo device, even file transfers over LAN Ethernet are around 50% slower than a regular Airport Extreme and I've found transfers to the disk from a GigE connected Mac Pro top out at around 60Mbps.
The Time Capsule is more useful as a convenience tool than speed I think so just be patient.

How to Measure file transfer speed in iChat

hi guys, is there anyway to measure the file transfer rate ,while sending o receiving a specific file
in iChat?

Actually I should say that it's not a good solution to stop all other applications to measure the network
traffic for one application, there is another problem cause even no file is during transfer the application sends and receives packets from internet and this way is not accurate to measure .

How to calculate file tranfer rate

I am working on applet which uplaod the files on ftp now i want to add progress bar on it which tell me exactly how much time it takes to upload or how manay percent it completed.
import cz.dhl.ftp.Ftp;
import cz.dhl.ftp.FtpConnect;
import cz.dhl.ftp.FtpFile;
import cz.dhl.io.CoFile;
import cz.dhl.io.CoLoad;
import cz.dhl.io.LocalFile;
i am using these libraries

So what's the question?I think it is how do I put in a progress bar which means I need to know how to calculate the file transfer rate.

What file transfer speeds are possible over Gigabit Ethernet - Hatter?

Thanks in advance for taking the time to consider this.
Our still photgraphic studio has a range of MACs all connected via a gigabit D-Link switch to a series of Buffalo NAS raids. Wiring is CAT5e, all devices have gigabit ethernet cards and the link lights on the switch suggest that all devices are connected at that speed.
We currently get file transfer rates of between 5 and 12 MB/s depending on network traffic.
We would like to upgrade our NAS to a NAS/SAN, preferably using the existing wiring (and avoid the expense of Fibrenet). 50 or 60MB/s would be great if possible.
Any ideas for a suitable archtecture and Hardware would be gratefully received. Cable lengths are a maximum of 30 metres.
Paul

I'm getting sustained speeds of 90-100 megabytes/second on a transfer across GigE from one mac to another, both working on high-capacity SATA drives.
It drops to ~65 megabytes per second if the source drive is my 2TB Firewire 800 external.
both rates are right on the real-world maximum for GigE and FW800 respectively, which is a great sign that nothing else is bottlenecking the transfer.
My experience with NAS boxes has been disappointing in the past, with transfer rates of 5-35 MB/sec - painfully slow for large files, which destroys the purpose of NAS for me, which is reasonably high-speed off-computer storage.
I'm MUCH happier, and didn't have to pay very much to set up a Mac with 4 SATA drives onboard, acting as a file server... I'm actually getting files FASTER than I am from a FW800 drive directly attached now.

Android file transfer

Anyone else having issues with android file transfer app under mountain lion?
Know a fix?

I suppose it's possible that there are Android devices that require it but I've never heard of or used one. See how it goes. Let me know if you have a problem and I'll try to help. We just won't tell anyone over in the iPhone forum.
Best of luck.

HYPER-V Guest shows 10Gig Connection but Transfer Rate to Other Machines on GigE Network Is 100Mb or less

HI -
I have recently moved from VMWare ESX to HYPER-V and love it! However, the network adapter shows 10gig and the Virtual Switch shows 10gig. My actual host adapter speed is set to 1GIG FULL. I am attached to a CISCO 4510 Switch. I have tried disabling certain TCP settings like RSS, TCPOffloading, Chimney, and DisableTaskOffload - set to enable for TCP Params. I can generally transfer from VM to VM or VM to HOST and ungodly speeds. But, when I transfer from VM to a system or server outside of the VM environment, network speed is right at 100mb.. I have tested this with Bandwidth Meter Pro. Is there something in the host server I am missing? I have not noticed any QoS or anything... Please help ! ;-)

Hi Ron,
The speed of the files transfer between VM and Host or VM and VM really depends on the route the communication uses and the speed of the processor.
According to the architecture of the Hyper-V, a VM to VM file transfer will go VSC --->VMBus--->VSP--->VMswitch--->VSP--->VMBus--->VSC. Think of the VSP as a port on the VMSwitch.
As to your question, the file transfer rate on a VM to VM file transfer will be primarily determined by the speed of the processor as the entire event takes place in software. The VMswitch will report its speed as 10Gbps, but the actual rate is completely dependent on the speed of the processors and the load on the machine. It can be much faster than 10Gbps, or it can be quite a bit slower.
For "external" virtual networks, we only use the physical NIC if the traffic is between a virtual NIC and an external node. VM to VM traffic is still only bound by CPU. In other words, some connections are bound by the physical NIC and some only by the CPU.
If the host and the VM are attached to the same Hyper-V switch, then they are just like two VMs attached to the same Hyper-V switch. You can think of the Hyper-V like a physical switch, but it is actually a software switch with ports just like a physical switch has. In this case the data transfer speed is limited only by how fast the Hyper-V switch software can execute the instructions. This may be slower or faster than the nominal 10Gb/s. Since no hardware is involved, the hardware doesn't affect the speed of the transfer.
If the host and the VM are attached to different Hyper-V switches, or the host is directly connected to the network (i.e., not connected to a Hyper-V switch), then the VM to Host communication will go via the external network, the physical network that joins the VM’s NIC to the host’s NIC. In this case the data transfer rate is limited by the slower of the Hyper-V switch(es) involved, the NICs involved, and the physical network components traversed by the data. Without knowing the details of the data loads, the hardware and software components, the host processors, memory, etc., it isn’t possible to determine what the limiting factor will be.
We run file copy tests between VM's running on External and then on Private and noticed a significant improvement on private where it took ~30mins vs about 4 hours on External.
Best regards,
Vincent Hu

File transfer option not available for remote devices under MAX

I am currently using LabVIEW 2012 and am using a application running on a Windows 7 PC to communicate (TCP/IP over Ethernet) with a RT PC. I have built an installer that installs a LabVIEW application as well as MAX on the Windows 7 PC. After installation i can open MAX and browse under Remote Systems to my RT device but am unable to ftp files to the the RT device as the File Transfer feature on the drop down menu is not shown. (This PC does not have the LabVIEW development environment installed.) Does anyone know if there are Additional Installers that are required to be included that will activate this feature or any reason why this feature in not available?
Regards,
Rob

Did you include the MAX FTP Client from the RT module in your installer? See this knowledgebase to see what I mean:
http://digital.ni.com/public.nsf/allkb/571113c2ce05998e862574e8006005a2?OpenDocument
Also, you can most likely just do ftp using windows explorer, if you prefer that method. Just open up windows explorer, and in the address bar type "ftp://x.x.x.x/" (where x.x.x.x is the IP address of the RT PC you are accessing.
Also, are you using the LabVIEW real-time module on your RT PC?
Colden

Transfer rate when moving larger files with MBP +AEBS over 802.11 n

Hi Everyone
I´m very confused about the capabilites of the new AEBS dual band.
I have a Macbook Pro C2D 2,4ghz late 2007 running Snow Leopard , with an airport card N compatible.
Recently i add to my home network an AEBS dual band , and i configure it in bridge mode , with support to the N and G nets.
So when i try to copy a big file (around 2 GB) between the MBP and a FS mounted via NFS, sometime i have transfer rates about 9 to 12 MBytes / s , but after this al the copy´s that y do slow down to 3,4 MBytes / s.
Also i test this copy operation with a 2,5" USB connected directly to the AEBS, and the results are the same , the max rate transfer is 3,4 MBytes /s.
I tried with various radio modes , and different locations (Ireland, etc...) due to the limitation in Spain to use the 5ghz band.
If i look the properties of the connection with de alt button it shows me that the MBP is connected to the N network at 5Ghz and 300 Mbits /s , but the transfers only reach 3,4 Mbytes /s. When i have a G net the transfers reach 2,4 Mbytes / s , i think that i have an limitation in my airport card or a misconfiguration in the AEBS.
Sorry for my English.
Thanks in advance.
Nacho López.

Hi Paul,
The last test is....crazy.
The environment (my home) are the next:
AEBS dual band
MBP connected via wifi N (5ghz)
An old box with ubuntu server 8.10 (Pentium4) with a SATA drive
External USB 2,5" connected directly to the old box via usb.
I perform 2 test , a copy to the SATA drive of the old box, and another copy to the external USB mounted on the old box in the directory /opt/COMPARTIDO/usb.
Here are the results of a scp :
-----COPY TO THE MOUNTED USB-----------------
batman-3:Movies Nacho$ scp -r Ironman\ P1\ \[1080p\]\[AC3\].avi [email protected]:/opt/COMPARTIDO/usb
[email protected]'s password:
[email protected]'s password:
Ironman P1 [1080p][AC3].avi 100% 3334MB 19.6MB/s 02:50
-------19.6MB/S TO MOVE 3,3GB OF DATA IN 02:50--------------
-------COPY FROM MBP TO THE SATA DRIVE OF THE OLD BOX------------------
batman-3:Movies Nacho$ scp -r Ironman\ P1\ \[1080p\]\[AC3\].avi [email protected]:/opt/COMPARTIDO/Mldonkey/incoming/directories
[email protected]'s password:
Ironman P1 [1080p][AC3].avi 100% 3334MB 15.7MB/s 03:33
-------15.7MB/s------------------------------------------------------
So definitly mi issue is not related to wifi N or the performance of my disks. I suspect that maybe the AEBS don´t manage well the protocols like SAMBA (the external usb drive was poor perfomance shared via AEBS) or NFS (the directory shared from the old box also has the same poor perfomance).
If you can, try it, a simple unix scp can makes fly your files over your network.
I´ll continue posting what if discover about this.
Regards,
Nacho.

KT3 Ultra ARU Slow HD Transfer Rates

Hello,
First, please see my system information at the bottom of this message.
I have a MSI KT3 Ultra ARU motherboard and have installed a Maxtor ATA133 60GB hard drive with 2 MB cache. The hard drive is jumpered as Master and is connected all by itself on the IDE1 ribbon cable. On IDE2 I have a CDRW (Master) and a CD-ROM (Slave). My other hard drive (WD 120GB ATA100 8 MB cache) is on IDE3 and is set up in RAID 1+0 stripe.
I recently ran the Sandra file system benchmark on my hard drives with what I think are very discouraging results. My Maxtor drive on IDE1 scored 32 MB/s and my WD drive on IDE3 came in at 23 MB/s. Those are some stinky results aren’t they?
I checked my Device Manager under IDE ATA/ATAPI Controllers and it indicates that for my Primary IDE Channel the current transfer mode for device 0 is Ultra DMA Mode 6. I don’t know how to check the transfer mode on my IDE3 hard drive.
Question #1: Are my 32 MB/s and 23 MB/s results slow for my hardware?
Question #2: If these results are slow, how can I increase the transfer rates?
Please help!
Thank you!!!!
My System
AMD Athlon XP 3000+
MSI KT3 Ultra ARU MOBO
2 x 256MB DDR PC2700 SDRAM
ATI Radeon 9600XT 256MB
Western Digital WD1200JB 120GB Caviar HD ATA100 8MB Cache 1+0 Stripe/RAID0
Maxtor 6Y060L0 60GB HD ATA133
Pioneer DR-A04S CD-ROM 32X
Lite-On LTR-48125W 48x12x48 CDRW
TTGI TT-350SS (350W) Power Supply
PSU Ratings: +3.3V/28A +5V/35A +12V/16A
Windows XP Home SP2

These tranfer rates seem fine for sequential read rates. The maxtor drive is at mode 6 and the WD should be at mode 5 if its ATA100.

File transfer rate under 10.4.8

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