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#1 2007-12-30 15:18:31

funnel
New member
Registered: 2007-12-30
Posts: 2

Am I the only one getting really slow speeds?

I was wondering if the speeds I'm seeing are normal?

Using 1 Gbit network:
Reading large files from the unit ~ 19 Mbytes/s.
Writing large files to the unit ~ 5 Mbytes/s.

Using 100 Mbit network:
Reading large files from the unit ~ 5 Mbytes/s.
Writing large files to the unit ~ 5 Mbytes/s.

I'm running vista (and there were no audio playing while copying) and using total commander to copy the files.
I must say I expected a little more speed, seeing as copying a file between two machines on the 1 Gbit network gives ~ 40 Mbytes/s.

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#2 2008-01-02 22:47:06

rskok
Member
Registered: 2008-01-02
Posts: 7

Re: Am I the only one getting really slow speeds?

DNS-313

My speed in 1gbit network:

Upload: 8.1mb/s
Download: 21mb/s

I think this is a normal speed.

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#3 2008-01-03 01:00:15

radir
Member
Registered: 2008-01-03
Posts: 68

Re: Am I the only one getting really slow speeds?

I have the same problem as funnel using 100/full net ... 

rskok, are you using special config? I hope you do so we can tweak our box too :-)

Regards

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#4 2008-01-03 14:03:10

rskok
Member
Registered: 2008-01-02
Posts: 7

Re: Am I the only one getting really slow speeds?

Hi Radir,

No, i'm not using any special config.
I have also netgear SC101 witch is 100mbit in my network.
the speed of this 100mbit:

upload: 5,4mb/s
download: 7,4mb/s

everything without tweaking.

according to http://www.dumeter.com/download.php

I think it is also depending on witch harddrive you use.

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#5 2008-01-03 16:57:31

radir
Member
Registered: 2008-01-03
Posts: 68

Re: Am I the only one getting really slow speeds?

Hi Rskok,

It is strange though ... I thought that a Gigabit Ethernet port is really gigabit plus a SATA interface in worth case SATA-I with 150MB/s as per standard

http://www.sata-io.org/3g.asp

should allow more than 5MB/s reading/writing speed. I/O handling should be done by a specialized chip and harddisk usually capable for higher speed. My internal PC SATA harddisks are doing cca. 20MB/s. DNS-313 is far from this and I don't understand why :-/

Regards

Last edited by radir (2008-01-03 16:57:53)

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#6 2008-02-01 10:59:09

satanicoPlan
Member
Registered: 2008-02-01
Posts: 17

Re: Am I the only one getting really slow speeds?

I get about 12 MB/s for uploading and 22 MB/s for downloading.

The 313 is connected to a Gigabit switch by a cat 6 cable. The PC - wich has a Gigabit ethernet card - is also connected to the switch, but it has a very poor quality cat 5 cable.

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#7 2008-03-09 22:09:27

Tilly
Member
Registered: 2007-11-11
Posts: 139

Re: Am I the only one getting really slow speeds?

funnel wrote:

I was wondering if the speeds I'm seeing are normal?

Using 1 Gbit network:
Reading large files from the unit ~ 19 Mbytes/s.
Writing large files to the unit ~ 5 Mbytes/s.

Using 100 Mbit network:
Reading large files from the unit ~ 5 Mbytes/s.
Writing large files to the unit ~ 5 Mbytes/s.

I'm running vista (and there were no audio playing while copying) and using total commander to copy the files.
I must say I expected a little more speed, seeing as copying a file between two machines on the 1 Gbit network gives ~ 40 Mbytes/s.

Go here to the german DL-Support board and translate the postings in this topic:

"kleines" Tuning der NAS" - "little tunning for the NAS"

http://www.dl-support.de/index.php?page=2

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#8 2008-03-16 20:21:34

satanicoPlan
Member
Registered: 2008-02-01
Posts: 17

Re: Am I the only one getting really slow speeds?

Hi,

I've followed the instructions from that link, but I cant get any performance boost. In fact, the speed remains the same.

By the way I'm suffering a really strange situation. When I bought the DNS-313, first week the speeds were really fast: about 20 MB/s for reading and writing. The I was happy :-D

But eventually the speed was decreasing and now I can get more that 8 or 9 MB/s. The speed is the same if I use Windows or Linux, and also the same through FTP and SMB.

Also the hardware is the same as the initial setup, without changes. The network cables are all CAT-6 but the one between the switch and the router, which is a CAT-5.

PC --->  Gigabit Switch <---- NAS
                   ^
                    |
                    |
             ADSL Router

Could it be that I have a bad hard drive and now that it is about 2/3 plenty it gets slower?  Maybe some misconfiguration in the NAS?

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#9 2008-03-16 20:23:19

satanicoPlan
Member
Registered: 2008-02-01
Posts: 17

Re: Am I the only one getting really slow speeds?

Ups, my fingers doesn't speak English as well I do...

Now the speed CAN'T get more that 8 or 9 MB/s. :-D

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#10 2008-03-23 15:06:19

naffarin
Member
Registered: 2008-01-28
Posts: 47

Re: Am I the only one getting really slow speeds?

I have gained a massive performance boost by changing the filesystem from ntfs to ext2. Previously i got about 5.5 - 6 MB / s writing to the dns, now i am seeing 8 - 8.5 MB / s in a 100 MBit network using a netgear wg 614 and bad cables. The commercial ntfs driver seems to be much worse than the ext2 driver (it also caused inconsistent file structures and data loss on the ntfs partition).

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#11 2008-03-25 19:38:05

steffen
Member
Registered: 2008-03-09
Posts: 42

Re: Am I the only one getting really slow speeds?

how did you change filesystem? yikes

i get this error now:

Disk scan complete. Alert: NTFS is inconsistent. Click 'Repair' button to repair disk.

but clicking repair doesnt help sad

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#12 2008-03-25 20:00:39

steffen
Member
Registered: 2008-03-09
Posts: 42

Re: Am I the only one getting really slow speeds?

if the filesystem change is the firmware update, ive laready got the 1.01b11 thingy ;§

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#13 2008-03-27 22:12:40

naffarin
Member
Registered: 2008-01-28
Posts: 47

Re: Am I the only one getting really slow speeds?

TBH i wouldn't recommend you to change the filesystem because i've seen processes getting randomly killed suddenly during larger transfers. This may even cause your dns313 to shut down. I am using a newer version of samba now where the problem does not seem to occur but the throughput has degraded a bit to 7M/s writing and 6.5 MB/s reading so it may be that the vanishing processes only occured when the throughput became "too high"

Anyway i wouldn't recommend you to change the filesystem and upgrade to a newer version of samba without a decent knowledge of linux.

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#14 2008-08-21 15:04:19

mrmischeif1
New member
Registered: 2008-08-21
Posts: 3

Re: Am I the only one getting really slow speeds?

hi funnel,

i have read that you got a 1tb wd to work on your dns313. i am currently not able to get any success. how did you get them to work

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#15 2008-09-09 12:51:50

Chibani
Member
Registered: 2008-09-09
Posts: 6

Re: Am I the only one getting really slow speeds?

My Computer->DNS bandwith is also really poor.
I've opened a telnet and made it run the "top" command, and launched a transfert.
CPU stayed at 5-10% and RAM wasn't full ( half full at most...)
It seems to me that the problem is not from a high CPU/RAM usage

EDIT : I've just tried downloading from DNS-313 to Computer (Mac running leopard) : 2.5MB/s
I've desactivated mediatomb : no change
Tried copying files using cp command (and also rsync) on Computer to send/fetch files from DNS-313 : no change
Tried the contrary (shared a folder of my Mac, and tried cp and rsync on DNS-313) : no change

Next step : Trying with a Windows/Linux PC
Next next step : install debian

Last edited by Chibani (2008-09-09 15:14:54)

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#16 2008-09-17 16:35:24

Chibani
Member
Registered: 2008-09-09
Posts: 6

Re: Am I the only one getting really slow speeds?

UP : same bandwith while connecting from a Windows or Linux PC ...
Next-step : installing debian on the device

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#17 2008-10-21 22:26:51

nastard
New member
Registered: 2008-10-21
Posts: 4

Re: Am I the only one getting really slow speeds?

Some numbers for my DNS-313...

Copying a big file in Explorer to the mapped network: ~1.585MBytes/s
Creating a big file on the mapped network drive using a utility: ~2.2MBytes/s
Creating a big file on the USB drive using a utility: ~22MBytes/s

Is this abnormally slow considering that I have connected it to a D-Link Gigabit 802.11n router?
Could enabling jumbo frames or doing some other performance tweak speed things up a bit, if so what should I change and where?

Last edited by nastard (2008-10-22 21:08:57)

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#18 2008-11-12 17:06:57

valosx
New member
Registered: 2008-09-08
Posts: 3

Re: Am I the only one getting really slow speeds?

from my tests, it's seems that it's IO from/to the internal HDD wich seems to be the limit ...
when doing file transfert, I have observe that :  cpu is near idle but IOwait is near 80/90% and then i got something like 5MBytes/s.
so it's not the network ...

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#19 2011-11-05 22:57:56

patriiiiiiiiiick
New member
Registered: 2011-05-03
Posts: 3

Re: Am I the only one getting really slow speeds?

Excuse me to revive an old topic, for the ones it bothers...

I just bought a gigabit switch, thinking that my DNS-313 would perform as good as with USB. Now I am quite surprised that it didn't change anything (I don't go over 5MB to upload to it) and find this thread confirming that I am not alone in this case.

I see that Naffarin suggested to change the file system. Is it a valid option? I am a linux user and I therefore suppose I could do it.

If not, is there another way to improve the performance or should I just consider buying a new NAS?

I have fonz's fun_plug on it if it matters but I suppose not...

TIA,

Patrick

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#20 2011-11-06 14:10:43

Electrocut
Member
From: France
Registered: 2009-04-05
Posts: 195

Re: Am I the only one getting really slow speeds?

I'm not sure you will get a big speed improvement by changing the filesystem to ext2, but you can have a try !

Naffarin has posted instructions here: Howto change main partition to ext2

But I seems to be an hardware limitation:

Code:

root@terabox:/mnt/HD_a2# hdparm -Tt /dev/sda

/dev/sda:
Timing buffer-cache reads:    70 MB in 0.51 seconds = 140548 kB/s
Timing buffered disk reads:   44 MB in 3.08 seconds = 14628 kB/s

As you can see, you won't get more than ~ 14 MB/s throughput, whatever the filesystem is.


DNS-313

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#21 2011-12-01 12:53:53

feo8484
New member
Registered: 2011-12-01
Posts: 3

Re: Am I the only one getting really slow speeds?

You are right. The limiting factor is the cpu, it's not capable of offering "real" gigabit data rates.

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