[wdmaudiodev] Re: Problem With Wave System

  • From: Uwe Kirst <u.kirst@xxxxxx>
  • To: wdmaudiodev@xxxxxxxxxxxxx
  • Date: Wed, 14 Nov 2007 09:47:55 +0100

Chinmay Mahata schrieb:
 Here in the driver, we observed -- from the wave system
the driver is getting very frequent PAUSE and almost immediate RUN
command even if from the application we are not calling any multimedia
API to cause wave system to do that. This is creating a great problem
for us.

Hello Chinmay,

some time ago I had a similar issue. After some debugging it turned out that it was caused by the driver verifier that was active on my machine. It seens that the verifier introduces a event queuing mechanism, it collects events for a while and fires them all at the same time some time later. This leads to a performance decline within the audio subsystem. If the state changes form RUN to PAUSE it means your driver is running out of data.
Hope it helps

/Uwe
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