Network Bandwidth low when dvbviewer is start

[Sebastiii]

Hi mate,

 

I have a strange issue with all version of DVBViewer.

 

I'll try to explain, all works fine (a little bug that i'll post in other thread).

 

I remark that when i tune a channel not differ is tune on SAT card or Unicast, the bandwidth of network shutdown immediatly.

For example, i use iperf to send data to my pc from another PC in TCP :

 

Without DVBViewer : the datarate is equal to 90Mbytes (my network is gigabit).

When DVBViewer is tune even if no channel appear : the datarate is equal to 5.8Mbytes.

 

So if i tranfert file from network, this is to low.

 

I must exit DVBViewer to datarate comes normal.

 

So if i use SAT card, there is no pb to see video etc. all works good (but windows network is low).

But if i use dvbserver on another computer to send dataflux on my PC -> the stream ic cut because not enough datarate to see it.

 

I hope that you understand me.

 

The pb comes too when i tune channel on unicast device even dvbserver is off -> the bandwidth becomes low when DVBViewer (maybe load graphic or tune channel) but i don't know why.

 

Thx You,

 

Sebastiii.

 

Ps : i'm on Vista SP1 64 bits and 32 bits

Edited February 21, 2009 by Sebastiii

[Lars_MQ]

Please post some more information:

 

http://www.DVBViewer.info/forum/index.php?showtopic=2210

[Sebastiii]

Please post some more information:

http://www.DVBViewer.info/forum/index.php?showtopic=2210

 

 

Sorry i forgot the support.zip, one form directory beta and other from DVBViewer last version.

 

Sebastiii.

support.zip

supportbeta.zip

[Sebastiii]

Hi,

 

Sorry for my post about the bug.

 

But i have made more test and it's not related to DVBViewer but related to somethink about audio card maybe drivers, renderer ?

 

Because i have the same bug in powerdvd and graphedit (mkv file) and when i delete renderer, the bandwidth is OK

 

So i hope i found a solution, because i have this on 2 computers.

 

Thx you,

 

Sebastiii.

[Derrick]

..try to find out whether any of these applications are connecting to the internet. If the same nic is used the speed might be switched to 100mbps.

[Sebastiii]

Hi,

 

 

Thx for your answer but the pb it not related to internet, it's the bandwidth local area

 

So i found a solution :

 

Reports have been flooding the web that the network transfer speed of Windows Vista drops to a low level when the user plays music at the same time. While there does not seem to be a obvious connection between network transfers and sounds being played and everyone would probably consider other possibilities first it seems that a service called MMCSS, the Multimedia Class Scheduler Service.

 

Mark Russinovich described the technical process in his blog explaining that ‘when a multimedia application begins playback, the multimedia APIs it uses call the MMCSS service to boost the priority of the playback thread into the realtime range’ which basically means that every other thread - including network transfers - see a performance drop because of this.

 

 

 

The following method has been working for most users who experienced the slowdown in network traffic in Vista while playing music.

 

Don’t play music while transferring files. This is pretty obvious but probably not the best solution for most users

Remove the MMCSS dependency of Windows Audio in the registry. To do that navigate to the key HKEY_LOCAL_MACHINE \SYSTEM \CurrentControlSet \Services \Audiosrv, right-click the DependOnService string and remove MMCSS from it.

 

 

Solution @ http://www.ghacks.net/2007/08/29/fix-for-s...-playing-music/

 

 

----------------------------------

 

The fix involves editing the Registry to turn off Network Throttling. As always create a System Restore Point to backup your Registry, then follow the steps below.

 

Click the Start Orb and type Regedit in the search box.

Click Regedit.exe at the top of the search results under programs.

if you are prompted for an administrator password or for a confirmation, type the password, or click Continue.

Navigate to the following key

HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionMultimediaSystemProfile

In the right hand pane double click NetworkThrottlingIndex and type in FFFFFFFF (that’s 8 F’s) in the Hexadecimal field.

Click Ok and restart your computer for the settings to take effect.

 

 

@ http://www.vistarevisited.com/2008/05/24/h...-windows-vista/

 

 

But even with this for this moment, that i have made test, the streaming is cut, i'll to investigate to bypass router, switch etc to see what append.

 

Sebastiii

[Sebastiii]

Hi,

 

For my streaming pb, it was the switch Linksys that made a pb.

 

So i know that i do

 

Thx.

 

Sebastiii.