dd if=/dev/urandom of=/dev/null  

Feel free to fork.

    • ImgurRefugee114@reddthat.com
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      2 days ago

      Unironically. I did this with my 480 back in the day in an uninsulated apartment. Also crypto mining in the narrow slice of time where it was profitable-ish to do so with a consumer GPU. But then ASICs took off and I went back to folding / SETI

      • juipeltje@lemmy.world
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        2 days ago

        I remember trying this for a little bit too and did some crypto mining, but after leaving it on for days my room refused to warm up at all. I think the room was just too big for the heat output of the pc to handle. In the end i gave up and just turned on the heater again.

        • ImgurRefugee114@reddthat.com
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          2 days ago

          Yeah, it was basically like me running a ~400 watt heater. It’s not a ton, but it’s also not nothing. Even when I did use resistive electric heaters, I still kept it going because it still contributed. 15A 120v circuits, ~1500w heaters are the norm. At the time I did that I was also running Dual Xeons; so, full system draw was in the ballpark of ~600w. At the time, it was cheaper-than-free heat, so why not, even if just supplemental.

          Of course, now that doesn’t work at all; always a loss. But still: It’s a heater that does some limited good while also heating. The electricity is the same anyways… May as well push it through some logic gates before warming my room.

          100% efficient. (of course, heat pumps can go over 100%… But as far as resistive heating goes, it’s not like a GPU is any worse then a space heater… Watts are watts)

      • RandomHugs@lemmy.world
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        2 days ago

        How much did someone make from that? With one ordinary PC I mean, to not turn my question into a “how long is a rope” type.

        • ImgurRefugee114@reddthat.com
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          2 days ago

          At the time I was running it, it was about enough to offset the cost of electricity and maybe turn a slight profit. Nothing substantial. But then it got way harder to mine btc and asics dominated the field.

          Of course, had I started a few years earlier, I’d probably be a billionaire.

    • irotsoma@piefed.blahaj.zone
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      2 days ago

      I did this a long time ago but found that by the time my systems completed work, they were already completed and I never got any credit. Not that credit was the reason I did it, but also my results were just wasted. It’s probably been well over a decade since even looked at it and longer still since I tried doing it. Has it gotten any better about assigning smaller units of work or any other mitigation of those kinds of issues?