Re: Flash 10.1 uses 90%+ CPU

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On 06/11/2010 01:01 PM, Clodoaldo Neto wrote:
> 2010/6/11 Andrew Haley <aph@xxxxxxxxxx>:
>> On 06/11/2010 11:40 AM, Clodoaldo Neto wrote:
>>> For me Flash 10.1 CPU utilization is very intense. Some videos have
>>> many dropped frames. Right now this is almost unwatchable with more
>>> than 95% CPU utilization:
>>>
>>> http://worldcup.vevo.com/
>>
>> This is H.264 video, which is notoriously CPU intensive to decode.
>> The new generation of computer/GPU hardware is being designed to do
>> this with dedicated peripherals, but the flashplayer you have won't
>> use that.  Also, the built-in decoder in flashplayer might not be as
>> fast as it could be.
> 
> My point, which I neglected to post, is that with the previous Flash
> version, 10.0, the CPU utilization was 20% at the most demanding
> videos

That certainly is not my experience.  H.264 will stretch almost any
processor, and in HD is beyond the capabilities of even the newest
single core.  20% CPU utilization is pretty reasonable for MPEG
decoding, though.  I don't know what you might have tried in the past.

> and with 10.1 it is unusable for some videos. My desktop CPU is an
> AMD 2.2 GHz. Not very impressive, but also not that ancient.

Well, the question is whether you can do better with an older
flashplayer and *that particular video*, which seems to be SD
widescreen.

Andrew.
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