Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.


hbk



94 posts

Master Geek


# 36571 28-Jun-2009 20:19
Send private message

Hello,


I have a D-Link gigabit router DGL-4100 and two PC's connected to it with onboard Realtek gigabit ethernet adaptors.


When transferring files between the PC's using FTP the fastest transfer speed I can get is 26MB/s.


Should it be faster? What would be the bottleneck? The integrated ethernet adaptors?


PC's have resonable specs, quad core, lot's of memory, SATA2 HDDs etc.


Cheers


Create new topic
299 posts

Ultimate Geek
+1 received by user: 1


  # 229048 28-Jun-2009 22:10
Send private message

Hi there,


I dare say your hard drive are the bottleneck, although you should be able to get at little better than 26mbps.


Have a read of this article which will explain why hard drives are the common bottleneck in gigabit networks:
http://www.tomshardware.com/reviews/gigabit-ethernet-bandwidth,2321.html




Red Jet Web Services
- Affordable websites for small businesses
- Google Email setup and Migrations

8033 posts

Uber Geek
+1 received by user: 390

Trusted
Subscriber

  # 229055 28-Jun-2009 23:39
Send private message

Agree hard drive speed with be the bottleneck most likely.

You could benchmark the drives in each system with hdtuen or crystaldisk.

 
 
 
 


22054 posts

Uber Geek
+1 received by user: 4680

Trusted
Subscriber

  # 229067 29-Jun-2009 02:23
Send private message

I have not seen over 30megabytes/sec between machines, whereas the 2 drives in one machine will go to about 60-65 on the windows 7 copy speed meter thing, and it doesnt seem to be cache since thedrive light goes off a couple of seconds after the dialog disappears.

Ahh esata ;)




Richard rich.ms

hbk



94 posts

Master Geek


  # 231124 5-Jul-2009 10:34
Send private message

Cheers.

Tried HDTune and got an average transfer rate of 70.1MB/s.

I'll have a read through that article. First thing to try might be connecting the machines together directly to eliminate the router being the bottleneck.

2098 posts

Uber Geek
+1 received by user: 918

Trusted

  # 231130 5-Jul-2009 10:58
Send private message

If you want to see what sort of actual network capacity you can get between the two PC's, iperf is great for this.

http://sourceforge.net/projects/iperf/

If it shows really high speeds then you can start to look at your disk I/O and other things.





It looks like I'm using an adblocker. I should consider whitelisting Geekzone in my adblocker or a subscription. The Quick Reply box will appear for me when Geekzone is whitelisted. Hooray for me! If I want to reply to this topic I should click on Compose Reply.


222 posts

Master Geek
+1 received by user: 81


  # 231141 5-Jul-2009 11:58
Send private message

setting your MTU to 9000 and ensuring RFC1323 is enabled will most likely help as well. On a PC at work that I couldn't get any better than 250mbit out of when doing an FTP transfer, I was able to get 800mbit+ using iperf which shows the hard drive to be the bottleneck as others have mentioned.

xpd

Chief Trash Bandit
9502 posts

Uber Geek
+1 received by user: 1615

Mod Emeritus
Trusted
Lifetime subscriber

  # 231182 5-Jul-2009 16:02
Send private message

When I have LANs here we run via an 8 port gig switch and get about 40mbps on average via DC++.
HDD is the usual bottleneck tho as others have mentioned.




XPD / Gavin / DemiseNZ

 

Server : i3-3240 @ 3.40GHz  16GB RAM  Win 10 Pro    Workstation : i5-3570K @ 3.40GHz  16GB RAM  RX580 4GB Win 10 Pro    Console : Xbox One

 

https://www.xpd.co.nz - Games, geeks, and more.     Now on BigPipe 100/100 and 2Talk


Create new topic



Twitter »

Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:





News »

HPE to acquire supercomputing leader Cray
Posted 20-May-2019 11:07


Techweek starting around NZ today
Posted 20-May-2019 09:52


Porirua City Council first to adopt new council software solution Datascape
Posted 15-May-2019 12:00


New survey provides insight into schools' technology challenges and plans
Posted 15-May-2019 09:30


Apple Music now available on Alexa devices in Australia and New Zealand
Posted 15-May-2019 09:11


Make a stand against cyberbullying this Pink Shirt Day
Posted 14-May-2019 20:23


Samsung first TV manufacturer to launch the Apple TV App and Airplay 2
Posted 14-May-2019 20:11


Vodafone New Zealand sold
Posted 14-May-2019 07:25


Kordia boosts cloud performance with locally-hosted Microsoft Azure ExpressRoute
Posted 8-May-2019 10:25


Microsoft Azure ExpressRoute in New Zealand opens up faster, more secure internet for Kiwi businesses
Posted 8-May-2019 09:39


Vocus Communications to deliver Microsoft Azure Cloud Solutions through Azure ExpressRoute
Posted 8-May-2019 09:25


Independent NZ feature film #statusPending to premiere during WLG-X
Posted 6-May-2019 22:13


The ultimate dog photoshoot with Nokia 9 PureView #ForgottenDogsofInstagram
Posted 6-May-2019 09:41


Nokia 9 PureView available in New Zealand
Posted 6-May-2019 09:06


Motorola Solutions joins local partners to deliver advanced communications network in New Zealand
Posted 30-Apr-2019 21:50



Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.


Support Geekzone »

Our community of supporters help make Geekzone possible. Click the button below to join them.

Support Geezone on PressPatron



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.