Originally posted by Nille
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Linux 3.12 Brings Big AMD Radeon Improvements
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Originally posted by agd5f View PostThe only asic that commit affects is r6xx chips. R7xx and newer are not affected since they use the async dma rings for bo moves and have since kernel 3.8 or so. The only time the new cpdma code would come into effect for newer chips is when you run the kernel bo tests. TBH, I don't know of any particular changes that would have had much impact on performance.All opinions are my own not those of my employer if you know who they are.
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Originally posted by Ericg View PostMesa 9.3 git also uses the SB backend by default, doesnt it?
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Seeing as the results even surprised Alex, I'll run more tests today on a completely different system with various generations of AMD GPUs and try to get these results up tomorrow to see how those go.Michael Larabel
https://www.michaellarabel.com/
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Originally posted by Michael View PostSeeing as the results even surprised Alex, I'll run more tests today on a completely different system with various generations of AMD GPUs and try to get these results up tomorrow to see how those go.All opinions are my own not those of my employer if you know who they are.
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Originally posted by Ericg View PostMaybe a git bisect too Michael? Just to narrow down the commit or at least a series of commits that could've effected thisMichael Larabel
https://www.michaellarabel.com/
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Originally posted by Michael View PostSeeing as the results even surprised Alex, I'll run more tests today on a completely different system with various generations of AMD GPUs and try to get these results up tomorrow to see how those go.
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Originally posted by Michael View PostSeeing as the results even surprised Alex, I'll run more tests today on a completely different system with various generations of AMD GPUs and try to get these results up tomorrow to see how those go.
Can we request from a E-350 to a A10-6800K ?
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Originally posted by smitty3268 View Post3.12 does NOT turn DPM on by default. There were way too many changes in this kernel to consider the feature stable yet, but maybe 3.13 will do so. Also, the 4870 card michael is testing here is unlikely to get any performance benefit from it anyway - it's likely clocked high by default, and would just save power with DPM. It's the newer cards that tend to be clocked low by default and get big speedups - Radeon SI cards, Cayman, and the APU parts. And likely mobile as well.
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