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Mining monero x5580
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CPUs (and GPUs) use *much* more power when heavily loaded (and they generate more heat - so if you need air conditioning you'll use more electricity for cooling).
Your .sig says X5680 - which are 130 watt processors. Apple shows 309 watts under load for a dual 2.26 system - if those are E5520 those are only 80 watt processors. Note also that your system has much more RAM than this:
https://support.apple.com/en-us/HT201796
Bitcoin has variable value. If the price keep going up like last year, then may be worth to do so. However, if it drop back to US$1000 per coin, then I doubt if you can make the extra electricity cost back.
It's more like a gambling now. However, if you treat it as investment, simply buy some bitcoin is easier.
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Ended up installing xmr-stak-cpu and connecting to supportxmr.com pool.
Been playing with the thread configuration and still not clear on whats going on. I’ve gone from 700 H/s to right now about 450 H/s with the same config. Not sure if its got something to do with actual work demand or what.
I’m running with 17 threads according to Activity Monitor (about 50% over all cpu usage), yet I configured 12 threads on the config file. I can add more threads and load more the cpus but that does not increase hash output. Im thinking its got something to do with actual workload downloaded or something.
Anywho, not to clear on how this works.
Been playing with the thread configuration and still not clear on whats going on. I’ve gone from 700 H/s to right now about 450 H/s with the same config. Not sure if its got something to do with actual work demand or what.
I’m running with 17 threads according to Activity Monitor (about 50% over all cpu usage), yet I configured 12 threads on the config file. I can add more threads and load more the cpus but that does not increase hash output. Im thinking its got something to do with actual workload downloaded or something.
Anywho, not to clear on how this works.
As AidenShaw said, mining use GPU to accelerate. For your Hash rate, I doubt if you can break even. It's just 2.5MH/h (with 700H/s) max, or down to 1.6MH/h (stable?). That's not even close to 10% of a single R9 380 can do (25MH/s stable with VBIOS mod, 22MH/s at stock config)
Anyway, I did a quick calculation for you. Even you don't need to pay anything to the pool. And assume the electricity cost is $0.15/kW. Use dual X5680 to mine will give you negative profit. You better stop it now.
P.S. The dual socket 5,1's base power consumption is about 150W, and I add extra 100W for each CPU during mining. Which I believe close enough to represent your situation.
[doublepost=1514866380][/doublepost]For your info. Even you go for GPU mining. Because the cMP has a base power consumption of about 150W. It's almost impossible for you to have any profit (as long as electricity is $0.15/kW)
e.g. with mining on a cMP via a single R9 380
Or a single RX580
As you can see. All of them has negative return.
The others already warn you, unless your electricity is free. Don't do it.
You’re absolutely right! If you mine for Bitcoin. For that you would need ASICs nowadays to be anything near profitable.
You could turn a Mac Pro in a profitable machine by using one of those graphics cards mentioned and mine for alternative coins. Check for example whattomine.com to see what can be profitable. A single GTX 1080 can deliver $4-5.- a day if you pay close attention to which coin to mine that day/week
But whatever you do, do not mine with the CPU(s)! Those are not mining-efficient.
Thanks for the details.
It seems that the info I had was not right. Locally I could see 450 H/s. But there seems to be a problem with xmr-stak and memory page lock. That’s why its so slow.
But in the end just not worth the trouble. Might be feasible with a couple of RX 550 for 100€. Which are suppose to give you some 400 H/s more. But still.
Anywho, for who ever has a similar rig. Thats what you will get with xm-stak-cpu, about 450 H/s with about 50% of overall CPU usage.
That was fun =D
It seems that the info I had was not right. Locally I could see 450 H/s. But there seems to be a problem with xmr-stak and memory page lock. That’s why its so slow.
But in the end just not worth the trouble. Might be feasible with a couple of RX 550 for 100€. Which are suppose to give you some 400 H/s more. But still.
Anywho, for who ever has a similar rig. Thats what you will get with xm-stak-cpu, about 450 H/s with about 50% of overall CPU usage.
That was fun =D