Re: Pulseaudio 40% of CPU

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  On 10/25/2010 04:11 AM, Marko Vojinovic wrote:
> On Monday, October 25, 2010 04:39:53 JD wrote:
>>    On 10/24/2010 08:28 PM, JD wrote:
>>> --- snip ---
>>> No matter what we think of flash, pulseaudio is not a product
>>> of the flash plugin. It is a free and opensource linux product.
>>> I just created output of strace of the pulseaudio process
>>> and posted it at
>>> http://pastebin.com/VbgCXwc3
>>> It shows clearly that it is in a tight loop polling and finding
>>> nothing to process. As I had stated earlier, there is no youtube
>>> video playing at all. It seems once you play any browser based
>>> flash video, pulseaudio will continue to run even after you kill the
>>> tab where it was playing, and chew up 40% of cpu (at least, this
>>> is on my laptop with the old athlon64 3700+ unicore cpu).
>>> I do not know how much it consumes on much faster cpu's.
>>>
>>> Are there audio engineers on this list?
>>> Is this the way to handle an audio stream by an audio daemon?
>> I would like to add that this behavior is only evident when playing
>> a flash video via the browser.
>> But if I play a video via ffplayer, then after the end of the video,
>> pulseaudio goes back to consuming almost 0% of cpu.
>> So, is it possible that the flash plugin is not closing the audio
>> file descriptor, so pulseaudio keeps polling and finding nothing?
> Probably. Either way, the fact that there is a problem only after flash
> playback indicates that flash and/or the browser are at fault here, not
> pulseaudio.
>
> Best, :-)
> Marko
Thanks Marko -
I will look into finding a way to ask
adobe about it, since it is their plugin.

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