* cousteau
takes a screenshot. I'm done with trusting this mobile irc client
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<geertu>
cousteau: Dhrystone results depend a lot on compiler and optimization options
<geertu>
There's also an in-kernel dhrystone test ;-)
<geertu>
E.g. the U74 is starlight gave me only 1.8 DMIPS/MHz
<geertu>
s/is/in/
<muurkha>
geertu: ooh, really?
<muurkha>
I feel like anything over 1.5 DMIPS/MHz is pretty respectable. 2.5 DMIPS/MHz is about 2 IPC, isn't it?
<Esmil>
if those numbers depend on uncached memory access speed both the unmatched and jh7100 (starlight, visionfive v1) had some bugs in the memory controller that was much improved in the version of the core they put in the jh7110 (visionfive 2)
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<geertu>
Esmil, nope cached memory
<geertu>
muurkha: E.g. for Cortex-A15 I get 2.4 to 3.3 DMIPS/MHz, depending on gcc version and options like -Os or -O2)
<muurkha>
sounds reasonable
<muurkha>
Esmil: Dhrystone is from before the VAX, so it easily fits into cache
<muurkha>
any sort of reasonable cache
<Esmil>
i see. well that also shows how hard it is to make good benchmarks because it means the jh7110 feels considerably faster when just using the console
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<muurkha>
yeah, benchmarking is hard
<cousteau>
Specifically I was looking for Core-V cores
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<sevan>
xypron: they do, but on a D1 it's a 4 hour build on every kernel update.
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<sevan>
xypron: looks like the two changes needed for licensing issue have landed upsteam. Just a case of waiting for a new release or carrying the patches
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<ksbedfordjr>
well how goes this am?
<ksbedfordjr>
so what boards are you all using to devel with ?
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<A1ice>
Does anyone use allwinner D1? Does its U-boot process require non-free blobs?
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<Stat_headcrabed>
Seems not
<muurkha>
yay!
<Stat_headcrabed>
But d1 has tooooo much bugs
<Stat_headcrabed>
Not recommend
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<sevan>
6.x kernels are a vast improvement for D1. no idea about the actually hardware bugs. Biggest issue with hardware on my d1 sbc is the realtek wifi driver.
<A1ice>
I'm going to remove it directly
<sevan>
the wifi driver?
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<A1ice>
the wifi module lol
<sevan>
ah :)
<sevan>
A1ice: which D1 based board do you have?
<nelnire>
/1
<A1ice>
mqpro
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<sevan>
I have the licheerv, but I think we both have the same wifi chipset
<xypron>
A1ice: Ubuntu has a package u-boot-nezha which is open source only for the Nezha D1 and Lichee RV Dock.
<conchuod>
drewfustini: my take is that if you made contributions worth mentioning, give yourself a co-developed-by. If you didn't then I don't see the value in having them in the commit history.
<drewfustini>
okay, thanks.
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