Pretty average file transfer on network

Forums › LAN (ethernet/Wifi/routers/Bluetooth) › Pretty average file transfer on network - help troubleshoot

Batman

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#206070 8-Dec-2016 16:25

Hi I have a Linksys WRT1900ACS - device A connected at 1Gbps wired; device B gets 500Mbps when doing internet speed tests over wifi

Why would it be that when I transfer one large file between Device A - wired to device B - wifi, I can only get 20MBps (ie around 80Mbps) when there is nothing else going on in the network?

Is there a setting to tweak or do I just accept it?

Jase2985

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#1684762 8-Dec-2016 17:06

20MBps is 160Mbps, the multiplier is 8

RunningMan

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#1684763 8-Dec-2016 17:06

20MB/s is closer to 160Mb/s not 80. How are you transferring the file - what protocol?

ubergeeknz

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#1684779 8-Dec-2016 17:30

What kind of device are device A and device B? What kind of drive are you reading from/writing to? What protocol are you using (already asked but anyway)?

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#1684788 8-Dec-2016 17:55

Umm desktop computer which gets 940/440Mbps to internet and laptop wItch AC Wi-Fi.

Umm no protocol i don't think, over Windows file sharing ie using Windows Explorer

sbiddle

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#1684849 8-Dec-2016 19:21

speedtest.net means very little - it's not having to read data from a HDD or write it back to a HDD. How big are the files?

Personally I don't see anything out of the ordinary getting ~160Mbps real world copying from Ethernet to a PC over WiFi

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#1684865 8-Dec-2016 19:38

sbiddle:

speedtest.net means very little - it's not having to read data from a HDD or write it back to a HDD. How big are the files?

Personally I don't see anything out of the ordinary getting ~160Mbps real world copying from Ethernet to a PC over WiFi

4 GB video file.

Ok thanks. What should I expect over Gigabit ethernet - ethernet PCs?

sbiddle

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#1684878 8-Dec-2016 19:57

joker97:

sbiddle:

speedtest.net means very little - it's not having to read data from a HDD or write it back to a HDD. How big are the files?

Personally I don't see anything out of the ordinary getting ~160Mbps real world copying from Ethernet to a PC over WiFi

4 GB video file.

Ok thanks. What should I expect over Gigabit ethernet - ethernet PCs?

Really depends on the performance specs of the hardware but probably somewhere around 30MB/s (240Mbps), maybe up to double that if you have really fast SSD drives.

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mcraenz

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#1684923 8-Dec-2016 21:13

sbiddle:

joker97:

sbiddle:

speedtest.net means very little - it's not having to read data from a HDD or write it back to a HDD. How big are the files?

Personally I don't see anything out of the ordinary getting ~160Mbps real world copying from Ethernet to a PC over WiFi

4 GB video file.

Ok thanks. What should I expect over Gigabit ethernet - ethernet PCs?

Really depends on the performance specs of the hardware but probably somewhere around 30MB/s (240Mbps), maybe up to double that if you have really fast SSD drives.

You should get much better than that. I just did a test pulling a bunch of ISO files from my storage server (2x512GB SSD + 2x2TB Spinning rust) to a spinning rust Segate 7200 and got a sustained ~170MB/s. That's spread over 2x gigabit interfaces so you could expect to get about half of this, the limiting factor in my case being the write speed of the disk.

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Jase2985

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#1685009 9-Dec-2016 07:14

with my 2x2 AC wifi card in my laptop which is connected at 650-833Mbps, i normally get between 20-40MB/s (160-320Mbps) upload and 40-50MB/s (320-400Mbps) download to/from my desktop.

with an Ethernet cable i get about 112MB/s (900Mbps)

wellygary

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#1685053 9-Dec-2016 09:32

Stick the file on a USB 3 HDD and slave it off the back of the Linksys, then test again,

If you get markedly different results to pulling it across from the PC, then it indicates that the issue is between the router and the PC....