my C version of librandomx was something like 10% slower because I ripped out the templating. I plan to reintroduce it using cpp macros

but yeah, not fond of the code bloat

Some power usage testing running 32 threads (7950X @ 4.275 GHz, 0.85V): RandomX v1 is 18222 h/s, 87.8 watts. RandomX v2 (288, +4 for FMUL_R, -4 for IXOR_R) is 18553 h/s, 87.1 watts. Interesting.

CFROUND is so slow on Ryzen that v2 can run 12.5% more instructions (and more power hungry FMUL_R), while using less watts

Overall power efficiency increase is 288/256*18553/18222*87.8/87.1 = 15.46% (in terms of energy spent per RandomX instruction)

v1: 870.5e6 rx instructions/J, v2: 1005.1e6 rx instructions/J

v2 achieves > 1 billion RandomX instructions per joule, nice

Same test on Ryzen 5 5600X @ 3.6 GHz, 0.88V: v1 is 6449.86 h/s, 46.551 W, v2 is 6611.02 h/s, 46.903 W - this is 14.4% efficiency increase

hmm I'm getting 18100h/s on a 7950x 28 threads 5.2ghz 135w RX1

totally power inefficient :D

avg. 1.2v per core :| no wonder my office space is warm

got hold of a USB A to A cable to try to reflash my rk3588 box. but every write command just dies. this thing's flash memory is just toast.

I can still read about the first half of memory. that includes the partition table and all the way thru the boot partition

everything after that comes back as 0xCC

including what should be the recovery image, backup images, and all of the user data partition. oh well

ouch. yeah that's not healthy

that lychee pi arrived yet?

nope, still in transit

:( trying to decide between that or the beagleboard ahead. Its payday and I feel like its time for a new toy

then trying to decide between a hackrf one or just some rtl-sdr kit

risc-v growing :D

paulio_uk: got any interesting sdr projects planned?

going to start with the local pub/shop watch radios :P then span out - wouldn't mind having a stab at getting some satellite data

and maybe have a bit of a sniff on the old pager signals to see whats still active out there :D

hackrf one can also transmit, but that's a rabbit hole paulio_uk

you can get 90% of the way there with $15 receiver and some good antennas (outside of that cost)

I'd like to play with a bit of LoRa

tevador aarch64 JIT is ready: github.com/SChernykh/RandomX/tree/v2 - you can take the changes to your PR now

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fun pictures

so, external SODIMMs?

CPU confirmed though :D

6 CPU per board, how many boards though?

i'm surprised to see socketed SODIMM

3 boards

wow, 18 CPUs per machine