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     7 years ago  

    So I updated to 10.13.2 today and it lowered my performance quite a bit. I recompiled but that did not help. Went down to 7.2MH/s on the RP570 and 14.8MH/s on the RX580. Any ideas how to solve this?

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       7 years ago  

      Try below on terminal before starting mining.

      export GPU_FORCE_64BIT_PTR=0
      export GPU_MAX_HEAP_SIZE=100
      export GPU_USE_SYNC_OBJECTS=1
      export GPU_SINGLE_ALLOC_PERCENT=100

      And it may be helpful adding '--cl-local-work 256' option to the end of your ethminer options.

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         7 years ago (edited) 

        That helped a tiny bit. Up to 7.8MH/s on the RP560 and 15.2MH/s on the RX580... This is just weird. The only thing that changed was the software update.

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           7 years ago  

          I'm sorry to say that maybe Apple has to optimize device drivers more for 10.13.2

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             7 years ago  

            I have almost the same set up and ran into the same issue ☹️

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