19 replies to this topic

[donwieber]

I have a HTPC that I rip movies onto and a WHS 2011 pc that I backup onto and I get constant 25MB a second upload/download speed to my server, Is that normal? I know Gigabit Lan's max out at 125 so I thought I would have better transfer speed.

[ikon]

Unfortunately, you haven't provided enough info about your configuration to make any suggestions. 25MB/sec is not screaming fast by any means, but it's not awful either. After all, it is 250 Mb/sec.

[jmwills]

Yes, we need to know such things as routers, switches, cabling, etc and where each device sits on the LAN

[pcdoc]

Best to use a normal file copy to test. IF you are using backup it might be hindered by other factors. If you use something like a BD/HD movie you should see more what your network or system is capable of. Speeds can be affected the sending or receiving system/drive. I can usually see as much as 20 Meg variation from system to system but the range is always between 90-110. Try a file copy of a large file and see what you get as I suspect you have an issue somewhere as that seems very low to me.

[dvn]

Just a thought, but is antivirus running on either one of those systems?

Your numbers are horrible. They should be nearer 100 MB/s depending on hard drive spec and the state of your systems (busy, or not busy) if you are transferring movies rips.

Question: have you ever gotten decent transfer numbers between these systems?



Sent from my SAMSUNG-SGH-I777 using Tapatalk 2

[pcdoc]

Just a thought, but is antivirus running on either one of those systems?

Your numbers are horrible. They should be nearer 100 MB/s depending on hard drive spec and the state of your systems (busy, or not busy) if you are transferring movies rips.

Question: have you ever gotten decent transfer numbers between these systems?



Sent from my SAMSUNG-SGH-I777 using Tapatalk 2

That was direct.... Antivirus should not cut it to 25 though but the numbers are definitively low.

[jmwills]

We still do not know if this is wireless, wired, etc and how many connection points there are in the LAN.

[dvn]

We still do not know if this is wireless, wired, etc and how many connection points there are in the LAN.

Right. And meanwhile I'm exploring ideas other than networking - things that could alone or cumulatively account for 'sub-optimal' performance.

Sent from my SAMSUNG-SGH-I777 using Tapatalk 2

[ImTheTypeOfGuy]

Unfortunately, you haven't provided enough info about your configuration to make any suggestions. 25MB/sec is not screaming fast by any means, but it's not awful either. After all, it is 250 Mb/sec.

Is that Canadian math? I thought 1 Byte = 8 bits. Eh?

[ikon]

Is that Canadian math? I thought 1 Byte = 8 bits. Eh?

Actually, it's normally better to count 10 bits/byte. This helps to cover overhead like checksums, padding, etc. I have used this technique for 30+ years with fantastic success. By that I mean it correlates to real world experience way more often. It's also a lot easier to calculate in your head.

[timekills]

Is that Canadian math? I thought 1 Byte = 8 bits. Eh?

Actually, it's normally better to count 10 bits/byte. This helps to cover overhead like checksums, padding, etc. I have used this technique for 30+ years with fantastic success. By that I mean it correlates to real world experience way more often. It's also a lot easier to calculate in your head.

It isn't Canadian, its metric. In the US it is 8 bits to the byte, and two nybbles per bit plus 16 ounces per MB.

[ImTheTypeOfGuy]

It isn't Canadian, its metric. In the US it is 8 bits to the byte, and two nybbles per bit plus 16 ounces per MB.

Metric, Canadian, is there really a difference?

[timekills]

Metric, Canadian, is there really a difference?

Err. Joke (hence the 16 ounces per MB making fun of the "English" system only Americans still use.)

[Joe_Miner]

Err. Joke (hence the 16 ounces per MB making fun of the "English" system only Americans still use.)

I was waiting for your definition of a Terabyte.

[timekills]

I was waiting for your definition of a Terabyte.

About 128 gallons of data. Unless you're using hard disk manufacturer math, in which case it is closer to 125.

[darkside34]

I truly wish there was a way to disable encryption on SMB for LAN <-> LAN traffic. The overhead that SMB imposes on networks is substantial, especially in corp. environments. Doing RAMFS (RAM to RAM) transfers on my network shows that SMB has around 30% more overhead than NFS. The most speed I could get out of a well maintained gigabit network were around 350Mbits per second, and that was after a LOT of samba tuning.

iSCSI on the other hand, is a whole 'nother bag of worms....but then most block level storage protocols are.

[ImTheTypeOfGuy]

Anyone know of a network speed analyzer? Using media center on my xbox I get the network error all the time and need to find a way to determine what is causing it. I only have one switch in the entire house so that switch (gigabit) connects the HTPC directly to the xbox.

[Joe_Miner]

Anyone know of a network speed analyzer? Using media center on my xbox I get the network error all the time and need to find a way to determine what is causing it. I only have one switch in the entire house so that switch (gigabit) connects the HTPC directly to the xbox.

I use Lan Speed Test -- here's an example: http://homeserversho...rver-to-ex-487/

[ImTheTypeOfGuy]

I use Lan Speed Test -- here's an example: http://homeserversho...rver-to-ex-487/

Thanks

[ikon]

You could also try jPerf. It can give you throughput measurements: i.e. how many megabits/sec. Qcheck is another one that's a bit older but is good for quick checks. It doesn't work on Win7 or later though, IIRC.l