Firmware: A-410 [01 Apr. 2014] | A-400 [12 Mar. 2014] | C-300 [13 Feb. 2014] | A-300 [24 Feb. 2014] | C-200 [11 July 2013] | A-200/A-210 [11 July 2013] | Popbox V8 [3 Dec 2013]

Just got your NMT | WIKI has the answers | Search the forum | Forum Rules/Policy | Firmware & Official NMT News | Popcornhour manuals



User(s) browsing this thread: 1 Guest(s)
Thread Closed 
[A-110] Slow File Transfer rate from PC to PCH
03-13-2009, 02:32 AM (This post was last modified: 03-13-2009 01:55 PM by Robino.)
Post: #1
[A-110] Slow File Transfer rate from PC to PCH
Hi Everyone,

I mapped a drive to my PCH and I am attempting to drag and drop Files from my PC to my PCH. I am getting slow file transfer speeds (4-5 MBs) from my PC to my PCH.
My PC and PCH are connected via ethernet cable to my Linksys WRT54GS router.

I am able to transfer files from my Desktop PC to a hard wired laptop connected to the same router at 10-12MBs via the same ethernet cable.

Anyone know what might be the cause of the slow transfer speed. I also tried using Teracopy but still just as slow.
Find all posts by this user
03-17-2009, 04:50 PM
Post: #2
RE: [A-110] Slow File Transfer rate from PC to PCH
Same problem here. I'm getting about 2.0 -2.5 MB/s over both FTP and mapped network drive. PCH is wired and PC is wireless G.

Does the drop from 100Mb/s to 54Mb/s really drop it from 12MB/s to 2 MB/s?

Thanks!
Find all posts by this user
03-18-2009, 10:15 PM
Post: #3
RE: [A-110] Slow File Transfer rate from PC to PCH
Are you running latest firmware, also have you checked your network settings are you running full duplex, half duplex auto etc?

Samsung 50" Plasma (PS50A457P1DXXU)
Samsung Home Theatre System (HT-TX500R/XEU)
HDX-1000 w/ Samsung SpinPoint F1 3,5" Model: HD103UJ Size: 1TB
Find all posts by this user
03-18-2009, 10:29 PM
Post: #4
RE: [A-110] Slow File Transfer rate from PC to PCH
(03-18-2009 10:15 PM)bal Wrote:  Are you running latest firmware, also have you checked your network settings are you running full duplex, half duplex auto etc?
How to check and set Full Duplex or Half Duplex? Smile
Find all posts by this user
03-18-2009, 10:41 PM
Post: #5
RE: [A-110] Slow File Transfer rate from PC to PCH
Goto configure network adapter then you should find it in the advanced tab but first thing to check is that you have the lastest firmware because that will make all the difference.

Samsung 50" Plasma (PS50A457P1DXXU)
Samsung Home Theatre System (HT-TX500R/XEU)
HDX-1000 w/ Samsung SpinPoint F1 3,5" Model: HD103UJ Size: 1TB
Find all posts by this user
03-18-2009, 11:09 PM (This post was last modified: 04-06-2009 08:58 AM by ChinaJade.)
Post: #6
RE: [A-110] Slow File Transfer rate from PC to PCH
@Robino
If you do the math, a transfer rate of 4.5MB over a 100BaseT connection is normal for half-duplex ethernet. There are special situations where you can do better (full-duplex, infrastructure that doesn't lose packets, Nagle-algorithm on, etc.), but that is not the norm.

To take advantage of full-duplex, both machines involved in the transfer and any intermediate routers/switches must support full duplex. I would venture a guess that the PCH is using half-duplex 100BaseT. My guess is based on the fact that 4.5MB is normal for a half-duplex 100BaseT interface and 10-ish MB is possible with a full-duplex interface. Unfortunately, the PCH has neither "mii-tool" nor "ethtool" on board to check or set this. The normal "ifconfig" tool is present, but it doesn't set or show these options on the interface.

Perhaps someone with more skill could confirm this speculation? I just don't have the skills to build the needed toolchains to compile "mii-tool" or "ethtool" for the PCH. If it is true, and we could set the PCH interface to full-duplex, many of us would appreciate it greatly!

100BaseT is fast enough for streaming BluRay. But for transferring files onto and off of the PCH, 100BaseT is a royal pain. This is why you see the request for Gigabyte Ethernet (1000BaseT) as one of the primary feature requests in another thread. Big Grin

Teracopy or FTP are good choices for transferring. There is no real speed benefit, but at least you can see the progress if something goes wrong in large, multi-file transfers. Which in my experience, tends to happen a lot when a Windoze box is involved.

There is another issue pointed out in this thread. Apparently, the PCH CPU may be incapable of pushing much past 7MB/sec transfer speeds, even with full-duplex. Its a good discussion, but read that thread with care. The initial claims of 7MB/sec are not effective throughput speeds, but maximum capabilites of the CPU to push data across the wire. There are also some measurements using MB to represent Mbits instead of MBytes. Just read carefully. You'll see later in the thread that other tools were used to obtain an apples-to-apples comparison, and it seems 4-5MB/sec is everyone's experience.


@ jrmtz85
Quote:Does the drop from 100Mb/s to 54Mb/s really drop it from 12MB/s to 2 MB/s?

Yes, 2-2.5MB is normal for a Wireless-G network. A Wireless-G network is effectively half-duplex. Additionally, all wireless networks have additional overhead such as beacon frames, backchannel allocation, wireless frame checksumming (in addition to normal TCP/UDP packet checksums), security key re-negotiation, etc, that wired networks don't have to deal with.

Additionally, if you have a Wireless-B device connected to a Wireless-G network, the G network will degrade to the B speeds. Sadly, all it takes is one connected B device to have this happen. The N wireless spec addresses many of these problems, including separating B/G devices from N devices on distinct channels. But, even with Wireless-N, I don't think you're going to get the file-transferring speed for which you're looking.

cheers


Edit 6-Apr-2009
With the latest release of the firmware 01-17-090125-15-POP-403 (NMT 00-17-090115-15-POP-403 apps), the A110 appears to run at the full 7MB/sec speed allowed by the CPU for network transfers. This result is obtainable with a full-duplex 100BaseT connection to the A110.

THANKS, Popcorn Development!
Find all posts by this user
03-19-2009, 12:01 PM (This post was last modified: 03-19-2009 12:03 PM by robyX.)
Post: #7
RE: [A-110] Slow File Transfer rate from PC to PCH
Hello everybody,

I've got my a-110 for just 3-4 weeks, and I've read lots of post, try many way to share my files, but there's no results...
the transfer rate between my PCH and my PC is really too slow... actually i'm transfering a file and I don't manage to go faster than 103 Ko/s (Vista, Smb share). Huh I can't even watch a dvd rip cause it
The PCH and my PC are directly linked to my Modem/router (french Freebox). I have test in direct connect, but it doesn't improve the transfer rate...
The latest firmware is installed on the PCH.

I'dont know how to fix it...

If someone can help me found a solution... Sad
Find all posts by this user
10-09-2009, 01:39 PM
Post: #8
RE: [A-110] Slow File Transfer rate from PC to PCH
Upgraded to the latest firmware and the speed is still 4Mbps
Any updates?
Find all posts by this user
Thread Closed 


Possibly Related Threads...
Thread: Author Replies: Views: Last Post
  Slow Wifi file transfer speed figment222 4 2,465 01-16-2014 02:46 PM
Last Post: figment222
  A-200 loses network connection on file transfer Dornoeth 8 5,185 01-02-2014 04:36 PM
Last Post: J i m s t e r
  A400 and slow network speeds jib667 11 1,457 12-04-2013 09:15 PM
Last Post: jib667
  Restrictions for file name length and other jaakennuste 19 5,105 11-07-2013 11:46 PM
Last Post: leslysab
  Need help configuring ubuntu file server for NFS shares to PCH A-300!! robo-chimp21 1 823 10-30-2013 01:24 PM
Last Post: chris57
  Imac Slow NFS streaming fazpunk 0 756 07-28-2013 08:16 AM
Last Post: fazpunk
  NFS share unable to play any file hussain 0 875 07-19-2013 08:28 PM
Last Post: hussain
Wink Slow Wireless Transfer Speed zheng_xinrong 14 3,796 06-03-2013 09:27 PM
Last Post: figment222
  Can’t find file at nfs bingkee 0 801 05-18-2013 10:15 AM
Last Post: bingkee
  Entire Network File Transfer Slowdown bfb1963 3 1,292 04-19-2013 04:14 AM
Last Post: figment222

Forum Jump: