Originally posted by agd5f
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RV350, compositing and horrible performance.
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Originally posted by brosis View PostI have a question regarding that. I saw in phoronix test that radeon pretty much is close to catalyst, except on low-end cards like 55xx, 65xx etc. There radeon suddenly is a lot slower. I think this is indeed related to memory transfer, I suspect radeon version of memory manager is inefficient when it comes to caching from system memory.
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Originally posted by agd5f View PostHow much vram does your card have? You may be running out of vram which causes thrashing in GPU memory manager (i.e., migrating stuff between gart and vram). Modern desktop compositors use a lot of memory.
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Originally posted by oliver View PostMostly going to the 'hot corner' and bringing up the dash is really slow, clicking on the 'all apps' button is slow and getting text into the search field is bad.
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Originally posted by agd5f View PostIf it's related to CPU governors the issue is that the CPU never ramps up to high enough frequencies to keep the GPU properly fed with data. You can force the CPU to a high performance state and see if that helps.
Mostly going to the 'hot corner' and bringing up the dash is really slow, clicking on the 'all apps' button is slow and getting text into the search field is bad.
But first things first, performance governor tonight.
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Originally posted by oliver View PostDoesn't seem likly the issue, could be of course.
No, I think you had the idea that I totally overlooked. CPU rendering. While I have gallium 0.4 on RV350, NOT on llvmpipe, according to the info, it still takes some software fallbacks?.
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Doesn't seem likly the issue, could be of course.
No, I think you had the idea that I totally overlooked. CPU rendering. While I have gallium 0.4 on RV350, NOT on llvmpipe, according to the info, it still takes some software fallbacks?
So the new question arises, how do I check this? I guess I could scrounge the gnome site, and see what extensions mutter relies on and cross-reverence that with that my card supports.Last edited by oliver; 05 May 2013, 07:39 AM.
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Regarding the low setting, see Pontostroy's recent thread - it seems 3d load doesn't cause ondemand to bump up.
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Be happy and blame gnome
It likely uses some cpu fallback. How to check that, I have no idea.
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