[Marius]

Hi,

Trying to optimize the network topography, I would like to test the throughput to and from the BDP1. I find the file-handling speed to and from the BDP1 slower than might be expected from the earlier posts.

Building on this AC discussion http://www.audiocircle.com/index.php?topic=105170.msg1074924#msg1074924 I would like to ask this community for further insight.

Some use the mentioned Iperf, but this has to be installed on the server too, and running commands on the bdp1 is not my cup of tea yet.

What would be the best way to test this? Preferably on a Mac.

Thanks for any help,
Marius

[unincognito]

Hi Marius,

If you have placed your BDP-1 into developer mode

og into your bdp-1 via ssh and then enter the following to commands.

Code: [Select]
echo dev > /mnt/img/dev
reboot.sh

once the bdp-1 is backup and running you may need to refresh the pages in order to see the features still under development

Cheers,
Chris

you have access to the BDP-1's root file system, meaning you also have access to a ram drive on the BDP-1.  Simply connect to the BDP-1 over the network as you normally would, but instead of using the username/password of bryston and bryston.  Use root and bryston, for the network share choose "root".  Once this network share has been mounted, try copying a small file the following network path "/dev/shm/".  This should give you a pretty darn close representation of the link speed between your computer and the bdp-1.

Cheers,
Chris

[Marius]

At least I'm in...



Chris, do you mean just any file? I can of course just have a look and subjectively judge the transfer time, but that's not really what I meant. If one would like to 'measure' throughput as with Iperf, that would require some extra instructions given in shh (like a Ping command), or software maybe to be loaded in the BDp1?

Is that anywhere near possible?

Thanks,
Marius
 

Hi Marius,
  Once this network share has been mounted, try copying a small file the following network path "/dev/shm/".  This should give you a pretty darn close representation of the link speed between your computer and the bdp-1.

Cheers,
Chris

[Marius]

Just to give you an idea as of why:




Marius

[unincognito]

Hi Marius,

The idea of copying a file from your Mac into that folder will provide you with the throughput that the bdp-1 is capable just before your storage (hard drives).  You should see transfer rates between 5-7 MB per second.  If you see transferates this fast then your getting The appropriate speeds leaving just your drives to look at.

Cheers,
Chris

[Marius]

Hi Chris,

I fully understand what you mean, but it's hardly a reliable way of testing isn't it? Firstly, there is not enough room (only 6 mb ?) to copy any significant amount of files to, and secondly, there is no way of indicating the transfer/throughput to that drive. I can copy small files to it, but there's no way of testing the link to BDP1 and attached hdd's.

In real life, BDP1 users send proximately 1 gb  of data to those drives at least ( one recording in full hires) so it would be nice to test that and readout the real speed one can achieve. Is there a command to enter to do just that?

Thanks,
Marius

Hi Marius,

The idea of copying a file from your Mac into that folder will provide you with the throughput that the bdp-1 is capable just before your storage (hard drives).  You should see transfer rates between 5-7 MB per second.  If you see transferates this fast then your getting The appropriate speeds leaving just your drives to look at.

Cheers,
Chris

[unincognito]

Hi Marius,

If you disconnect any drives connected to the bdp-1 it should leave you with 120MB of space.  Regarding indication of throughput the simplest thing to do would be to time how long it takes to copy a file over and do some simple division.  The way I would do it, would be to use the time and copy commands from command line to get a more accurate reading.

Cheers,
Chris