ChanServ changed the topic of #linux-rockchip to: Rockchip development discussion | IRC log http://irclog.whitequark.org/linux-rockchip | Community GH https://github.com/linux-rockchip | Rockchip GH https://github.com/rockchip-linux | ML https://groups.google.com/group/linux-rockchip
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<Myy> meow
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<Ke> https://paste.debian.net/1009942/ new version of dtc-cmp will automatically propose kernel config option
<Ke> s
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<Ke> thgouh now it requires you to compile everything as modules
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<Ke> loads of drivers missing for gru-kevin based on me just doing make oldconfig on debian sid kernel
<BenG83> anyone with a RK3399 board at hand to run a DRAM benchmark?
<Ke> on linux-4.16-rc1
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<gab> BenG83: I do
<BenG83> could you run tinymembench?
<gab> where can I find that ?
<gab> ok
<JohnDoe_71Rus> does somebody work at rk3168?
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<beeble> BenG83: not sure what ram timings i have active. so with some grain of salt https://gist.github.com/anonymous/5a93ebb78081bab455b8e64f292a9581
<BenG83> hi beeble
<BenG83> does it make a difference if that runs on a little or big core?
<gab> BenG83: there it is https://pastebin.com/RYASmY0D
<BenG83> do you know what dram config you have?
<gab> I didn't modify anything about this yet
<gab> this is a sapphire board with 4GB
<BenG83> ok
<beeble> BenG83: the scheduler should have moved it to the big cluster anyway. but i will run it bound to the little
<BenG83> gab, BSP or mainline kernel?
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<gab> mainline 4.15.0-01490-g31466f3ed710
<BenG83> ok thanks
<gab> btw I'd love to know how to set my dram to get the same perfs as beeble ;)
<BenG83> your memset is for some reason pretty fast
<gab> I have glibc 2.26 from debian sid
<beeble> me too, but 4.4 kernel
<Esmil> BenG83: My Chromebook Plus is running 4.16-rc1 with fedora 27 and I'm getting quite different numbers. Hang on..
<BenG83> there could be DRAM DVFS involved too
<BenG83> not sure how to set that to ´performance´
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<Esmil> BenG83: http://ix.io/Gun
<beeble> gab: http://git.denx.de/?p=u-boot.git;a=blob;f=arch/arm/dts/rk3399-sdram-ddr3-1600.dtsi
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<BenG83> thanks
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<gab> beeble: will this dtsi work if I just use it with the kernel or do I also need to update u-boot ?
<beeble> on 4.15 i get similar numbers to gab
<gab> (huh, dumb question I guess)
<beeble> gab: i don't think it will help, seems to depend on the kernel version
<beeble> also if you are using mainline u-boot you are already running the same timings on sapphire
<gab> well, I'd better try mainline u-boot upstream instead of the rockchip-linux one
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<beeble> i think
<beeble> sorry take it back. it's using rk3399-sdram-lpddr3-4GB-1600.dtsi
<BenG83> ok
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