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[stillerz]

Has anyone else experienced slow transfer times for file copying on their DIR-655?  I'm running the 1.21 firmware, and when I copy from one Vista machine to another on a wired connection, I'm only seeing copy times of about 11 MB/s on a ~1GB file.  Wireless to a wired vista machine is even slower at around 9 MB/s.

I've also tried Windows XP with similar results.

Please share if you've had the same experience and figured out the problem.

Thanks!

[Sammydad1]

Hi,

I use a little utility called Total_Copy to do file copying over my network....  Windows file copy algorithm is known to be very wastefull and/or simply erratic.  I am sure there are other besides Total_Copy, but thats what I use....


SD1

[rekd0514]

Those sound like really good speeds to me. I have been getting under 2MB/s on firmware 1.32NA. It seems like I wasn't getting good speeds on some of the older firmware too, but I can't remember. Does it depend a lot on the file type being transferred?

[stillerz]

No, those are not good speeds at all.  The gigabit network should easily handle file copy speeds much higher than that.  Looking for anyone that has seen better performance than that.

Thanks!

[onebyside]

http://www.codesector.com/teracopy.php

been using for some months, works nice

[rekd0514]

I am talking wireless while you are talking wired. oops

[onebyside]

I stream 1080p from a qnap ts 509pro/RAID 5: Seagate ST31500341AS fw CCH1 (5x1.5TB)  wired to the 655 a2/1.21...wifi from the basement directly above to the main floor to my laptop/intel 5300 and wired hdmi to the sony sxrd with no probs

not copying I realize but thats all I really do wirelessly other than surf

[bigeyes0x0]

@OP: About your connection speed between computer, have u checked if you have them running in 1Gbps mode? For Windows just open the status window of each of network interface and check the speed there. For linux, use ifconfig to check for interface name of your network card then use dmesg|grep <interface name> to get its speed.

If either or both of them have link speed set at 100Mbps, then what you get is correct speed, please check if your LAN cards are capable of 1Gbps speed and less likely cable issue.

For wireless speed, it's a good speed for .N card.

[EddieZ]

Vista network file transfer performance in general is really bad. Even after applying the patches the transfer speed is mysteriously low, even with 100% strength.

[stillerz]

I thought it might be a Vista issue too, so I attempted the same sets of copys going from my XP system to both my D-Link NAS DNS-323 and to my Vista Desktop with similar performance results, which led me to think it might be a network/router issue versus just an OS issue.

I'm sure Vista doesn't help the matter, but would love to hear some stories about performance benchmarks across various kinds of systems connected to the DIR-655 on gigabit and wireless links.

[lizzi555]

I can't see a real issue there regarding your transfer speeds.

Wireless to wired transfer with 11N will max out at about 10MB/s (sometimes I get up to 13MB/s)
Using wireless transfer with 11G to wired there will be only up to 3,5 MB/s (2MB/s also is normal) depending on the wireless chipset used.
These are speeds with only one wireless client connected. If there are more, they will share the bandwidth and slow down the wireless.
Wireless transfer is also depending on the device used. An older laptop with 11N card will most likely only transfer 6,5-9 MB/s.
These are values with a optimal connection in my home. (no other wireless networks near by and at about 3,5 m and line of sight)

I compared different cards with the same device (Thinkpad R61) and DIR-655:
- build in  Atheros 5008 agn : max 10 MB/s - normal 8 MB/s
- DWA-140 (Ralink 2870) max 9,5 MB/s - normal 7 MB/s
- DWA-160 Rev A (Atheros 900x) max 13 MB/s normal 9 MB/s
- DWA-142 (Marvell Top Dog) max 9,5 MB/s normal 6 MB/s (depending on driver version)

- MSI Wind Netbook with Mini PCIe (Ralink 2860) max 8,5 MB/s - normal 5 MB/s (bad antennas cause a lot of errors and dropped packets)

Wired Gigabit transfer between DNS-323 and workstation is at about 15 MB/s with large files.
Here often the driver is the "problem". Using a Realtek 8169 Gigabit card with Win Vista drivers will slow down the speed and increase CPU usage. The same with a lot of on board devices from NVIDIA or Marvell or ...

These are only my experiences, others may reach different values depending on their environment.

[bigeyes0x0]

OP said he got wired to wired at speed 11MB/s. This is the speed of 100Mbps LAN not Gigabit LAN. There's only that anomaly. He should check his computer network interface link speed. That's about it.

For wired gigabit to gigabit speed, I have seen 100MB/s over here (from my self built NAS to my main computer) and I have seen better with cache burst.

[lizzi555]

OP said he got wired to wired at speed 11MB/s. This is the speed of 100Mbps LAN not Gigabit LAN. There's only that anomaly. He should check his computer network interface link speed. That's about it.

For wired gigabit to gigabit speed, I have seen 100MB/s over here (from my self built NAS to my main computer) and I have seen better with cache burst.

Be realistic
I don't know how you measured your speed but I have never seen 100 MB/s and more with Gigabit over copper.
Take a file with 2 or 4 GByte and stop the time while you transfer it. some tools may show you theoretical speeds.

The DNS-323 is a very limited hardware, you will most likely never see more than 20Mb/s and this value only for a short time. You can't compare it with a NAS you built with a 3GHz CPU and 2 GB Ram and a 4 disk Raid0 (just an example).
 

[bigeyes0x0]

I said I have seen, not like it's always 100MB/s, specifically as I said in one of my previous posts on this forum. The speed of my NAS, a Celeron D430 with 512MB and ONE Seagate 7200.12 running Ubuntu 9.04 server on another 160GB old Samsung HD, ranging from around 60MB to 100MB when I copy from it to my main computer, running Windows 7 RTM from MSDN. This is when I copy around my BD-rips which are typically around 8GB per file and the speed I see is from the Windows 7 copy dialog. The speed of around 100MB/s can go for around for quite some time, and considering my NAS only has 512MB, it's not cache effect.

[MarkG]

I clocked a 1Gbyte .vob file transfer in 90 secs with one computer having 100M LAN card, the other 1G, thru wired DIR655. so that's 11Mbytes/sec = 88Mbits/sec, or 88% of theoretical ( no protocol overhead ) for 100Mbits/sec LAN. Computer with 1G LAN card is Vista32, 100M computer is Vista64.

For others using 1Gbit/sec LAN, keep in mind you could be limited by your HD. Based