Quote from: MinersRus on November 06, 2019, 02:29:21 PM

Quote from: EnglishGentleman on November 06, 2019, 07:56:11 AM

Quote from: MinersRus on November 05, 2019, 04:56:24 PM

Quote from: EnglishGentleman on November 05, 2019, 04:29:35 PM

Quote from: MinersRus on November 05, 2019, 01:40:01 PM

Quote from: sundownz06 on November 05, 2019, 11:58:57 AM

I am hoping this Monero fork to RandomX will make my decision to own around 100 pcs Xeon X5660 worthwhile, haha!

I am getting close to 1500 H/S each on them... I forgot my power data (need to re-measure) but that is *under* the 90 watts max of the CPU... so 16 H/S per watt is the minimum.

Thermal Design Power for the Xeon X5660 is 95 watts. The actual power used can be upwards of 50% above this value just for the processor alone.

http://www.cpu-world.com/CPUs/Xeon/Intel-Xeon%20X5660%20-%20AT80614005127AA%20(BX80614X5660).html

Also you will need to consider the power used by the memory, motherboard, GPU and the efficiency of the power supply.

I have tested Dell T5600 workstations with dual Sandy Bridge E5-2640 and dual E5-2670 Xeon's. These are the results:

Dual E5-2640, 12 threads, 4554 H/s, 310 watts: 14.7 H/s/W

Dual E5-2670, 16 threads, 6406 H/s, 357 watts: 17.9 H/s/W

The E5-2640 also has a Thermal Design Power of 95 watts

http://www.cpu-world.com/CPUs/Xeon/Intel-Xeon%20E5-2640.html

Assuming that the two of then used 190 watts that still leaves 120 watts used for the memory, motherboard, Quadro 600 GPU and the 80% efficiency of the power supply.

Sandy Bridge processors are more efficient vs the Westmere processors which the X5660 is.

For actual power used you really need to measure at the wall.

Your guess of "16 H/S per watt" is not realistic.

THANKS for the information. How much memory did you have installed for those E5-2640 and E5-2670 tests and how fast is the memory? Also which OS did you use?

64GB of PC3-10600R memory (1333 MHz), 8x 8GB sticks

Windows 10 Pro

Thanks for the information. Do you think you will make any money mining XMR RandomX with servers? May be you would if you had very cheap power. RandomX is currently used on LOKI, a tiny coin with a daily exchange volume of $10k. Loki's network Hashrate is 52 MHS which is equivalent to 30000 Xeon E5-2620 CPUs or 4700 of the new Ryzen 3900X CPU. So that is a huge hashrate to get just $10k out per day.

LOKI is a very very very minor coin vs Monero (XMR).

LOKI price $0.315
Monero price: $63.555

https://minerstat.com/miner/xmrig

RandomXL produces hash rates double what RandomX will produce so 52M H/s of RandomXL is equivalent to 26M H/s of RandomX.

I for one do not believe you can extrapolate what you see mining LOKI to Monero (RandomX).

I am also at a loss in why anyone is currently mining LOKI because the numbers I plug in even with free electricity you will be losing money mining it (because of the pool fee).

Even if you had electricity at 1 cent per KWh you will lose 5 cents a day with an EPYC 7742 using 225 watts and producing 77464 H/s of RandomXL.

RANDOMX CPU BENCHMARKS
https://randomx.monerobenchmarks.info/index.php

Loki mining calculator
https://minerstat.com/coin/LOKI

Great chart showing all the coins that XMRig CPU miner can mine
https://minerstat.com/miner/xmrig

As for your question: Do you think you will make any money mining XMR RandomX with servers?

Yes I do for Monero (XMR) but if I am wrong I will be able to resell those the servers I have bought for a profit so my risk is minimum.

THANKS BUT my test server (Dell R610 with dual E5-2620) produced almost identical results for Loki and XMR.

LOKI 3600 H/S see https://drive.google.com/file/d/1XM3l6UzTeQmfUlCQ9DJXco6y4hN1oJUt/view?usp=sharing

XMR 3700 H/S see https://drive.google.com/file/d/1M3u24W8GCo8yLrGZvFvFjmcr3T1SKBCP/view?usp=sharing

So are you sure that Loki and XMR have different hashrate results?

Perhaps I am doing something wrong. Here are the command lines used:

LOKI: xmrig --url pool.hashvault.pro:80 --user L7f9SMpq53wNERBxCngFyqMoJvkMax8xSitiJY335ra12ucbiEFzgqKfHJg1Q9y58RGMi3TyGvPC94e 6w3zYKK9i9PHmDDr --pass x --keepalive --donate-level 0 --tls --cpu-priority 5

XMR: xmrig -o randomx-benchmark.xmrig.com:7777 -u 47wcnDjCDdjATivqH9GjC92jH9Vng7LCBMMxFmTV1Ybf5227MXhyD2gXynLUa9zrh5aPMAnu5npeQ2t Ly8Z4pH7461vk6uo --cpu-priority 5 --algo = rx/0

Can you see an error?

Thanks