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 Forum index » House Training » Users ( For the regulars )
Very slow data transfer
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bunio14


Joined: 18 Dec 2012
Posts: 4
Location: Poland, EU

PostPosted: Tue 18 Dec 2012, 17:07    Post_subject:  Very slow data transfer
Sub_title: moving data from Puppy to Windows
 

Hi,

My first post here and aready rising an issue.

The thing is I have bought HP thinclient T5510, installed Puppy Wary 5.00. This machine works mainly as torrent client with transmission running on it.
I use 16GB SD class 10 card as a hard drive, connected to the USB port via Sandisk card reader.
All working fine, but when it's coming to move the data from Puppy to Windows (either using pureFTPd or connecting USB HDD to the machine directly) it is dramatically slow. Max transfer I receive is up to 1 megabyte per second, so an average 700MB movie takes more than 10 minutes Sad

First I thought it's the card but I do believe class 10 is waaay faster. Now it came to me that could be the USB port, most likely this is USB 1.1.
Any possibility (software one) to speed it up? Or maybe there's a different way to move the data between Puppy and Linux - both machines connected to the same router.

I do appreciate any suggestions

Thanks!
Philip
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rcrsn51


Joined: 05 Sep 2006
Posts: 9159
Location: Stratford, Ontario

PostPosted: Tue 18 Dec 2012, 17:34    Post_subject:  

Does this box have a PCI slot? If so, you could install a USB 2.0 card.
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bunio14


Joined: 18 Dec 2012
Posts: 4
Location: Poland, EU

PostPosted: Tue 18 Dec 2012, 17:56    Post_subject:  

rcrsn51 wrote:
Does this box have a PCI slot? If so, you could install a USB 2.0 card.


Yes it does, requires PCI riser but it should not be a problem.
OK, will try that and will let you know if it helped.

Thanks!
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Monsie


Joined: 01 Dec 2011
Posts: 633
Location: Kamloops BC Canada

PostPosted: Wed 19 Dec 2012, 04:28    Post_subject: Very slow data transfer  

bunio14,

I find that usb 1.1 is notoriously slow.... regardless of whether one is running Puppy or Windows. In theory under ideal (lab setting) conditions, data transfer rate is 12 mb/second.... but I have never seen anything close to this spec.

Today, I was restoring my save file for Wary Puppy from a backup, and I was only getting a rate of 512 kb/second on average while copying from one flash drive to another.

Monsie

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My username is pronounced: "mun-see". Derived from my surname, it was my nickname throughout high school.
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Burn_IT


Joined: 12 Aug 2006
Posts: 1011
Location: Tamworth UK

PostPosted: Wed 19 Dec 2012, 07:30    Post_subject:  

Don't forget the rates are quoted in BITS not BYTES
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bunio14


Joined: 18 Dec 2012
Posts: 4
Location: Poland, EU

PostPosted: Thu 20 Dec 2012, 17:00    Post_subject: Re: Very slow data transfer  

Monsie wrote:
bunio14,

I find that usb 1.1 is notoriously slow.... regardless of whether one is running Puppy or Windows. In theory under ideal (lab setting) conditions, data transfer rate is 12 mb/second.... but I have never seen anything close to this


I've just googled and wikipedia says: data rates of 1.5 Mbit/s (Low-Bandwidth) and 12 Mbit/s (Full-Bandwidth)

So seems mine is low-bandtwith Smile

Bought PCI riser and PCI USB card, waiting for the delivery
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Flash
Official Dog Handler


Joined: 04 May 2005
Posts: 11082
Location: Arizona USA

PostPosted: Thu 20 Dec 2012, 21:25    Post_subject:  

Also consider that if you're transferring from one flash memory to another, the second one is recording. Recording to flash memory is much slower than reading from it. It might work better for you to first copy to a hard disk, then copy from the hard disk to the flash destination. Overall it's no faster, but it might get the source flash drive out of the computer sooner.
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bunio14


Joined: 18 Dec 2012
Posts: 4
Location: Poland, EU

PostPosted: Wed 16 Jan 2013, 20:11    Post_subject:  

OK, so the story continues.
After installing the PCI riser and the USB card I was not happy with the results and bought another HP Thinclient. This time it's HP T5720 http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&cc=us&taskId=120&prodSeriesId=1809592&prodTypeId=12454&objectID=c00589808

Seems it has 6 USB 2.0 ports.
I've checked with the puppy System/Hardinfo hardware information and under USB devices my Sandisk USB card reader is recognized as 480,000Mbit/s device and USB version 2,00.
Tried copying something via FTP and the results got slightly better and I've expected BIG change.
Thought that it could be this class 10 SD card so plugged in my USB HDD, mounted and tried copying files to my laptop using FTP - same slow results. I use Total Commander on laptop - if that is important.
Tried copying something between two drives connected to puppy machine so the SD card and the HDD and it seemed pretty fast but with FTP it's sooo slow.

My next idea was that the network card was set into half duplex or something like that. Used ethtool to check

Settings for eth0:
Supported ports: [ TP MII ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
Advertised auto-negotiation: Yes
Speed: 100Mb/s
Duplex: Full
Port: MII
PHYAD: 1
Transceiver: internal
Auto-negotiation: on
Supports Wake-on: pumbg
Wake-on: g
Current message level: 0x00000001 (1)
Link detected: yes

Looks good to me, why so slow then?


OK, and the small confession now.. It's pretty late here so what I managed to do when the new thinclient arrived was to plug the previous install of puppy into the new machine, so I did not reinstall but everything works just fine. I love puppy - you couldn't do it on Windows Smile

Please do not kill me if reinstall is an obvious solution Wink
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