vista will slow down with audio- atleast on network

[dsharp9000]

http://forums.2cpu.com/showthread.php?t=83112

 

[pkellmey]

This is an old well-known issue that's been around since Vista was released. MS insiders have said that they believe a fix is in the works for SP1 - this looks to be a definite kernel issue and not driver related. Also, there is some issue whether all networking is affected or not because many Linksys and D-Link wireless users (no one is completely certain which products) do not appear to be affected.

 

[exit2dos]

I haven't messed with it yet, but there is a possible fix:

Go through the article I cited before, and see what this key does... with the default key value (20), 80% of the CPU time is ALLOCATED to ANY MMCSS application, and WMP 11 is such app.
CPU TIME! not power, priority, memory... no, ***TIME***. Are we crazy???

HKLM\Software\Microsoft\Windows NT\Currentversion\Multimedia\SystemProfile\SystemResponsiveness

Change the value of this key from 20 to 50, and there you go... network performances restored, at the expense of the MMCSS-marked apps (as it should be!!!)
Being this a percentage, values can be between 0 and 100

http://talkback.zdnet.com/5208-12554-0.html?forumID=1&threadID=38024&messageID=697124&start=-1

 

[pkellmey]

I haven't messed with it yet, but there is a possible fix:

Over and over I am reading that people who notice the problem only get it for copies on the Private side of the network. The Public side (everything on the other side of the modem like the Internet) is unaffected by this bug. I would believe that it should be more related to audio apps and how they sense broadcast capabilities. I would believe that this fix by itself should not resolve the issue, but hey, it's worth a try.