r600g makes kwin eat 100% CPU

[xiando]

https://bugs.freedesktop.org/show_bug.cgi?id=30483

[kernelOfTruth]

I just love
FEATURES="splitdebug"

It'll install lean stripped binaries to your system, but dumps debug symbols to /usr/lib/debug/ if they're ever needed.

Keep your other flags as they are.

re-emerging glibc, mesa and kwin should be enough for a quick glance.

indeed !

I haven't enabled it yet but will do in the features in case anything goes wrong I can quickly debug it

didn't know of that flag / feature yet

thanks !

[xiando]

kwin with desktop effects enabled + r600g (current git) is now down to using 20% CPU when doing absolutely nothing on an idle desktop, which is much better but still way too high. It is still slow and jerky when used, but atleast it can be (ab)used at this point.

[nanonyme]

Note that splitdebug only takes hard disk space, it doesn't slow down runtime so you can as well keep it always on since hard disk space is cheap and recompiling takes time.