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Micro-benchmarking the N2

Posted: Sun May 12, 2019 4:03 am
by blu
I finally got my hands on the elusive N2, and CPU microbenchmarks were unleashed without mercy at the little machine's CPU.

(^f Amlogic)
Mandelbrot in BF interpreter
prime factorization
GEMM

For branchy integer code CA73 is a clear winner over CA72. For neon/asimd2 CA73 is reasonably close to the CA72 (~17% difference).
All-in-all, rarely have I seen such results from a $80 passively-cooled machine. Good job, HK/Amlogic!

Re: Micro-benchmarking the N2

Posted: Mon May 13, 2019 9:13 am
by odroid
Thank you for sharing the detail benchmark test results.
I hope the N2 must be a quiet and cool device. :)

Re: Micro-benchmarking the N2

Posted: Mon May 13, 2019 1:19 pm
by blu
odroid wrote:
Mon May 13, 2019 9:13 am
Thank you for sharing the detail benchmark test results.
I hope the N2 must be a quiet and cool device. :)
It's as quiet as it gets and in contrast to other fanless boards -- entirely justified. Advanced chip fabnodes FTW : )

Re: Micro-benchmarking the N2

Posted: Mon May 13, 2019 1:56 pm
by odroid
Glad to know that we didn't waste money to make a bulky and heavy heatsink.
But I have to agree the modern 12nm fab silicon must be the main reason why we don't need a noisy fan. :D

Re: Micro-benchmarking the N2

Posted: Fri May 24, 2019 7:10 am
by blu
Finally got to benchmark the Mali-G52 on rudimentary raytracing in OCL, and that little bugger actually outpeforms a 2010 macbook (geforce 320M):

geforce 320M: 47fps
mali-G52 mp4: 50fps

Re: Micro-benchmarking the N2

Posted: Fri May 24, 2019 8:51 am
by odroid
Thank you sharing another nice GPU benchmark result.

Re: Micro-benchmarking the N2

Posted: Sat Jun 15, 2019 7:07 am
by blu
And here's how S922X performs at a very BW-demanding CPU task -- variations of a single-threaded binary search -- in comparison to other machines:

Image

(note: all quoted RAM BWs are theoretical)

Re: Micro-benchmarking the N2

Posted: Wed Jun 19, 2019 5:28 am
by blu
Here's the code for the above binary-search benchmark (repo wasn't public at the time of the post).