Flash 10.1 uses 90%+ CPU

[Clodoaldo Neto]

2010/6/11 Andrew Haley <aph at redhat.com>:
> On 06/11/2010 01:01 PM, Clodoaldo Neto wrote:
>> 2010/6/11 Andrew Haley <aph at redhat.com>:
>>> 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.

Yes. I was watching that video just before the upgrade to 10.1 and it
was completely smooth. And then right after that I went to watch it
again and it was dropping lots of frames.

The other videos I watch regularly are the CNN videos. Although they
are still smooth, now the CPU utilization is much higher, more than
80%.

Are you using Fedora? What version of the Flash plugin? What is your
CPU utilization playing that video? What is the CPU?

Clodoaldo

>
> Andrew.
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