Radeon R300: flash exposes terrible EXA performance

[Dennis J.]

On 09/19/2010 04:45 PM, Miguel Angel Alvarez wrote:
> Hi all,
> I've found that lately flash video performance is terrible when using EXA, to
> the point of being a slideshow with 100% cpu usage. The only workaround to
> get decent performance has been to switch to old XAA acceleration.
>
> I have a R300 video card (ATI Radeon 9550). I've tested with Xorg 7.4 and Xorg
> 7.5, driver xf86-video-ati 6.13.1 and a late git build, in a opensuse linux
> system. I don't know if this affects other Radeon cards.
> Test site: megavideo.com
> Should I file a bug?

I've also seen similar issues with a more recent card (HD4850):
https://bugzilla.redhat.com/show_bug.cgi?id=553059

The sysprof profile in that bug shows some interrupt stuff going on there 
that might point to the problem but so far I couldn't get anyone to take a 
closer look at this.

Regards,
   Dennis