Slow file transfer speed on OS X / Windows LAN

I have a Mac Mini with OS X Server (Yosemite) on a network of 5 Windows 7 PCs, the server hosts FileMaker Server 13 and also some files in a shared folder.
I notice the file transfer speed when copying a file from one PC up to the server's shared folder is around 350KB/second, is this an acceptable speed? how could I improve it?
Thanks for your help.

I'm having the same issues.. I recorded a bunch of video with the 4s.. now i'm copying them to my windows 7 pc with it peaking out at 900KB/sec. My corsair thumb drive in the same port gets 5-10x this speed. any luck getting faster speeds?

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Extremely slow file transfer speed

Hello,
Has anyone else had problems transferring files between computers over a 802.11g network? Recently, I found that transferring files via wireless has become incredibly slow. This morning it took about 10 min to transfer a 25MB file from my MacMini to my MacBook Pro. This was not the case several weeks ago.
In terms of updates, neither have the notorious Airport Extreme 2007-001 update installed. Though, I did have to reinstall OS X on the Mini to roll it back. The MacBook Pro does have the Security Update 2007-001 installed where as the Mini does not.
Specs:
Wireless Router: Linksys WRT54GSv4
MacBookPro - 2GHz Core Duo
MacMini - late 2006 - 1.66GHz Core Duo
Thanks

Golybs wrote:
is there a way to find out why "a file is in use" / what process is using it, and kill that process?
Yes. Launch the Terminal utility and enter this command:
sudo lsof | grep "sometext"
That character after "lsof" is a "vertical bar", which should be on the far right of the row with "P". The first character of "lsof" is a lower-case letter "L". The text "sometext" should be replaced with at least part of the name of the file that seems to be locked. The quotes aren't necessary unless there's a space (or one of a few other odd characters) in the text you put in the command. After you type the text, press <return>. You'll be prompted for your administrative password.
If the culprit turns out to be Finder, try clicking on the Finder icon on the Dock while you hold down an "option" key, then choose "Relaunch".
how can I find out if some process is accessing the Time Capsule hard drive, keeping it busy and making the transfers slow?
That's a little harder. You could launch Activity Monitor and click on the "Network" tab in the lower part of the window. I'd also check the quality of the signal to the Time Capsule
If you have an Apple AirPort base station, I'd use the advice in this thread to investigate the signal and noise levels that each Mac sees, as described in this thread:
http://discussions.apple.com/thread.jspa?threadID=2347845&start=1

Local file transfer speed slow on E1200

On a local file transfer (computer to NAS or NAS to computer) my file transfer speed with the E1200 is way too slow. I would expect the Wireless N speed to be at least 54mbps (megabits per second), which would be equivalent to 9 MegaBytes per second.
In practice the speed of transfer appears to be at 8mbps (1 MegaByte per second). Here is a screen shot:
The speed is the same whether I copy from the computer (on a wireless N link) to the NAS, or from the NAS (on a 100Mbit ethernet port on the E1200) to the computer. The NAS is brand new, auto configured to a RAID-1 setup with two new drives.
Anyone know why this is? is the encryption (WPA2-PSK/AES) slowing down the transfer? The same problem occurred with copying a folder of photos as with copying this large file. I don't think I can upgrade the firmware on my device, as I have the first version of the E1200.
Solved!
Go to Solution.

Sabretooth --
There is no option to set the Qos to zero. I can set it to "auto" in which case the number has no effect.
I could set it to manual but it restricts me to a range as you can see from the graphic.
In case you are wondering, my internet speed is 10Mbps downstream, 5Mbps upstream. So I am getting the same speed for the internet that I am getting for a local transfer.
The next troubleshooting step is to bypass the wireless and hook my PC to the router. I will let you know if that makes a difference.

Slow file transfer from pc to mac

I've got two windows xp home pcs and two macs (a mac mini and an ibook). The windows PCs are connected to the wired network and both macs are wireless.
When I try to initiate a file transfer on either pc to either mac, the file transfer is really slow (slower than I think it should be). It's very annoying.
Does anyone have any idea what causes this and how to fix it? Thanks.

I've got some more information: when Windows NT initiates a file transfer to the mac using windows file sharing, the transfer speed is fast. It's XP that has the problem. Is this a windows XP problem or a Mac OS X problem? Last time I checked, the macs were both able to communicate with each other just fine.
Ok, here's the transfer speeds approx: a 100mb file is normally quickly transferred in about a minute. When the windows xp machine tries to send to the mac, the transfer will take many times longer to complete.
Can anyone help with this problem? Anyone at all? Please? I'm annoyed about this issue.
So, what's the fix? Please. Thanks.

File transfer speed when on battery power

Hey there - I've noticed that my file transfer speed is ridiculously slow when i'm not plugged in to a power source. Even when my battery is fully charged it's super slow. This happens not only when I'm uploading files from a memory card to my computer but when I'm attaching files to an email, or even sending an email. I've asked other mac users and they say this is not the norm for their machines....any ideas?
thanks!
Sunny

additionally, you can disable power menagement for your wireless card completely through iwconfig's power option. I suggest you read the manpage for iwconfig, I have quotes the 2 related options for you.
txpower
For cards supporting multiple transmit powers, sets the transmit power in dBm. If W is the power in Watt, the power in dBm is P = 30 + 10.log(W). If the value is postfixed by mW, it will be automatically converted to dBm.
In addition, on and off enable and disable the radio, and auto and fixed enable and disable power control (if those features are available).
Examples :
iwconfig eth0 txpower 15
iwconfig eth0 txpower 30mW
iwconfig eth0 txpower auto
iwconfig eth0 txpower off
power
Used to manipulate power management scheme parameters and mode.
To set the period between wake ups, enter period 'value'. To set the timeout before going back to sleep, enter timeout 'value'. You can also add the min and max modifiers. By default, those values are in seconds, append the suffix m or u to specify values in milliseconds or microseconds. Sometimes, those values are without units (number of beacon periods, dwell or similar).
off and on disable and reenable power management. Finally, you may set the power management mode to all (receive all packets), unicast (receive unicast packets only, discard multicast and broadcast) and multicast (receive multicast and broadcast only, discard unicast packets).
Examples :
iwconfig eth0 power period 2
iwconfig eth0 power 500m unicast
iwconfig eth0 power timeout 300u all
iwconfig eth0 power off
iwconfig eth0 power min period 2 power max period 4
website with the current manpage:
http://linux.die.net/man/8/iwconfig
or simply:
$ man iwconfig
Last edited by stefanwilkens (2010-09-13 11:11:37)

Extremely slow file transfer from wifi server to MacBook Pro

I am experiencing extremely slow file download speeds from my wifi server to my MacBook Pro. I have just carried out a test - transferring a 16.5Mb folder took 8 mins, 24 secs. Transferring the same folder to my iMac G5 takes less than 3 seconds. Also, copying the same folder from my MacBook Pro to my wifi server only takes 22 seconds. Any suggestions PLEASE!!!!!

Try getting it on the Mac using something other than iPhoto.
In Windows, it would simply be a matter of opening Explorer and copying the file(s). I'm fairly certain that Mac has a similar feature, but I'm not familiar with Macs.
Not really an iPhone issue... more of an issue with the application being used to import the file.

K8T Mstr2-FAR7 ---- File Transfer Speed

I measured file transfer speed between partitions, 1) both in the same physical drive and 2) each in a different physical drive. The measurements were made on WXP and WVT by using a file having 1048MB in size. Results are as follows:
1) Partitions in the same physical Drive
WXPx86 : 18.55 seconds
WVTx86 : 38.91 seconds
2) Each partition in different physical drive
WXPx86 : 9.31 seconds
WVTx86 : 19.13 seconds
Are the above results normal? Vista's speed appear way lower than the maximum allowed by SATA-150. The speed may be affected by many factors. My hardware spec is shown below. RAM is in single channel mode and is running as DDR333.
Could anyone shed light on the matter of file transfer speed?

It's because Vista is buggy, everybody knows this.
If you want speed, use XP.
And that isn't the only problem with Vista, also graphics is 3x faster under XP.

File transfer speed in Shared USB Hard Drive via Airport Extreme

I' am planing to buy one of this, but first I need to know what kind of file transfer speed I can expect when sharing USB drive via Airport Extreme 1000Mbps Ethernet.
Thanks.
Message was edited by: Robert81

most likely 14m/sec but normally 10.5 this is ethernet wired and usb attached. wireless would be about 8M/sec
Wired is good enough I use it for Finder copy frequently.

How do I see file transfer speeds?

Hey guys, does anyone know if it's possible for me to see file transfer speeds instead of just the time remaining in Finder?

Hi,
In song view, go to menu > view > view options and select bit rate, file type and size.
In preferences, you can change import settings to Apple lossless. When you use file > create new version you can now can now convert from aiff to lossless.
Create playlist based of file type being lossless.
Jim

IPhone File Transfer Speeds

I have two MacBooks and two iPhones and I'm seeing very different file transfer speeds between the two. Both have the backup option manually disabled to improve sync times.
Setup 1: iPhone 3GS with MacBook Pro (15-inch, Late 2008) model
Setup 2: iPhone 3G with Black Macbook (13-inch Mid 2007) model
The time it takes to sync video between the two is drastic with the newer model copying files in a few seconds, and the older setup copying files over 5-10 minute periods.
I have yet to swap the two iPhones on the two computers but from a technical perspective, I don't understand why one would transfer files faster than the other. Both are using USB 2.0 and I've already tried using the same cable for both. Anyone see similar behavior? Is this a facet of the older computer or older iPhone?

As an example, a USB host on a PCI bus will send or receive the data via the PCI bus; the stack will prepare the next data in memory and receive interrupt from the host. That's what I mean, how that's implemented.

Slow file transfer - ethernet + firewire issue?

Here's the setup -
Win98PC > ethernet (direct cable connection) > iMac G5 > Lacie d2 FW drive
Connection (100BaseT) works, logins work fine, browsing folders & files is fine. But when I transfer files from the WinPC to the Lacie drive through the iMac G5 it is unbelievably slow. Same thing if I use one of my other Macs in place of the WinPC, so it looks like a network or iMacG5 issue, not a WinPC issue.
On the other hand, if I use Airport to connect a WinPC, eMac or MacBook to the iMacG5, the file transfers are blindingly fast.
Is this perhaps because the FW & ethernet controllers in the iMac G5 are the same PHY chip? Is this some kind of contention for bandwidth through the PHY chip? (The Airport card in the iMacG5 is on a separate bus, not connected to the Ethernet/FW PHY chip, which makes me suspect something is up with the ethernet/FW controller.)
Anyone else encounter a problem like this with slow file transfer through your iMacG5 to an external FW drive?

Martin, that's really interesting. I've noticed slow network transfers in the past but always racked it up to overhead and parity errors inherent in the OS's. Never thought it might be the PHY chip, though it certainly could be. Apple has a broadband tuner which might help you by increasing packet size (but you probably knew that as a Level3). My stopgap is to do the file transfers with firewire, but your laptop may not have that option.
You could maybe copy to the mac over the network, then copy a second time to the LaCie. Not elegant or clean, but will save you time. Kinda like taking the backroads to avoid rush hour traffic - it's farther to go but you get there faster.
I'll look into the controller question. Let us know how you're doing,
Ed

Slow fileshare transfer speeds with Lion Server

I'm running Lion Server on a Mac Mini and using SMB to share files between the server and both Windows and Mac machines. I can't figure out why I can only get 2 Mb/s transfer speeds between the server and the other machines. I'm quite certain I'm not limited by my network and the disk write speeds clearly exceed 2 Mb/s. Any suggestions for boosting this speed or is this an actual limit of SMB or Lion Server?

Have a similar issue on a Macbook Pro mi 2010 : since the 10.7.3 update, Samba file sharing (to access a FreeBsd server over the LAN) is extremely slow. I mean I can't work normally since the update (3 weeks).
I've reported the bug to Apple. I think it is a bug limited to some machine version (because other mac in the office do not have the issue)

4500EA LAN File Transfer Speed

My XBOX started complaining when I began using Windows Media Center to stream videos from my PC to my XBOX. I found out that I had a wireless G router provided by verizon which wasn't fast enough to stream videos. SO, I went out and purchased a 4500EA router expecting it to be the fastest thing I had ever seen.
Now it seems a bit slow when trying to stream video from my laptop to the XBOX and i'm a tad bit confused as to why. So I did a file transfer from a desktop wired directly to the router from a laptop in the same room wirelessly connected to the network and my speed is about 4mbps. 4MBPS!? This device is supposed to be capable of moving packets LAN side at 450MBPS.
Both of my PC's are quad core, newer model PCs. I've tried moving files now for several hours with the same results. I've toyed around with my wireless adapters, changed power settings, full duplex, half, changed mtu sizes, changed security settings. I'm out of ideas.
Is getting about 1% of the advertised bandwidth normal? Or is something wrong?

1. Without knowing the wireless adapters you use it's impossible to say how much you might get under very good circumstances.
2. The advertised 450 Mbit/s is as usual with networking the theoretical boundary which would be possible only under absolutely ideal circumstances not using 802.11. In reality a compatible adapter might get maybe 1/2 of that under very good circumstances.
3. In reality you often won't get a 450 Mbit/s or 300 Mbit/s connection rate (which is only an indicator for the signalling and encoding used) but only a 144 Mbit/s connection at least for the 2.4 GHz band because there is too much interference.
4. Toying around with settings usually makes things only worse, in particular if you don't carefully revert all settings back to the original settings.
5. What connection rate did you get with your desktop? What adapter is in the desktop?

File transfer speed in 10.5.2

Since installing 10.5.2 the transfer speed between two Macs sharing a wireless access point is abysmal. 1GB now takes 8 hours to transfer if copied through the Finder. It used to take about half an hour. Using rsync from the command line the same transfer still takes about half an hour, with no Speedup. This looks like a protocol issue rather than anything to do with the wireless setup.
Anyone getting the same problem?

Yeah. The same wireless network setups work fine with machines not yet brought up to 10.5.2. The problem has been seen both with 3rd party wireless routers and with Apple Airport Extreme. There's some indication the problem can even be triggered in wired ethernet transfers outbound from a 10.5.2 MAC if the file sizes are big enough and time duration of the transfer is long enough.
The two threads (cited above) pretty much cover what seems to be known about the problem from posters here. There's speculation that this is an instance of "silly windows" syndrome (see the threads). At least one bug report has been filed already (no word of any response yet). Here are the two threads again for convenience:
Slow upload into the internet from a wireless 10.5.2 MAC:
http://discussions.apple.com/thread.jspa?threadID=1389943
Slow file transfers within the LAN outbound from a wireless 10.5.2 MAC:
http://discussions.apple.com/thread.jspa?threadID=1394485
--Bob

File Transfer Speeds

I know this topic has already been covered in some of the posts but it was replied that the latest version i.e., 6.20 would solve the bug. Which obviously it failed to do hence this post.
The latest version of skype 6.20 still gives a maximum speed of upto 4Mbps even if the clients are on Gigabit LAN connection. Version 6.18 used to stuck at 1.5 Mbps. Earlier versions (6.9) used to provide full LAN speed via skype.
Secondly, earlier versions of Skype didn't pass on the sounds of programs running on one of the clients but as I tested today, version 6.20 passes client sounds (and I'm not talking about speech) like music etc etc.
Is this really how upgrades are supposed to behave? Or is it poor quality assurance testing before making release public?
Disappointments since MS acquired this brilliant service.

Been having issues with file transfers for a while, didn't find out til I went to post here that Skype is now up to 6.21 (I was on 6.20.x but 'checking for updates' didn't find anything) so I uninstalled, installed fresh, and tried again. Still no good.
Not sure what the aforementioned previous discussions covered, but when sending a file my local connection gets saturated on the upload side. So my connection properties dialog shows my connection uploading faster than my internet can (somewhere around 800KBps, while my net upload is ~100), with everything else net related predictably slowing down. And the file transfer itself slows to a crawl.
Uninstalled the latest/current version of Skype, back to 6.16.0.105 as I read in some other advice, and am currently sending a file at my normal speed without any issue at all.
So if this was supposed to be fixed it most certainly isn't.
Note this isn't an anti-MS rant - I didn't install Skype until MSN/Windows messenger no longer worked. For my needs (IM, file transfer) messenger worked perfectly. Skype has been ok until recently with this issue.

Slow file transfer speed on OS X / Windows LAN

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