Details
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Type:
Bug
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Status: Done
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Priority:
High
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Resolution: Done
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Affects versions: None
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Fix versions: 20.08
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Components: Development
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Labels:
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Sprint:
Description
Kernel 4.14.186 – Fast. http://ix.io/2qxh
Kernel 5.4 – Slow
Kernel 5.7 – Slow http://ix.io/2qpX
odroid forum site admin thinks DRAM controller config could have issues on kernel 5
https://forum.odroid.com/viewtopic.php?f=184&t=38774
Additional research…
this patch for dynaminc timings was added around kernel 5.3 https://lwn.net/Articles/787647/
we’re using it
lane@billroyall:~/GIT/build$ fgrep EXYNOS5422 config/kernel/* config/kernel/linux-imx6-current.config:CONFIG_EXYNOS5422_DMC=m config/kernel/linux-odroidxu4-current.config:CONFIG_EXYNOS5422_DMC=y config/kernel/linux-odroidxu4-dev.config:CONFIG_EXYNOS5422_DMC=y
Attachments
Issue links
- relates to
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AR-388 XU4 - Introduce new Mem freq scaling patch and re-enable
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- Done
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