I had not much time for testing due to urgent DCR fix, just noticed slowdown for Polaris on Linux. It is because OpenCL reports that it has 14 compute units (CUs) instead of 36. You can fix it by using undocumented option: specify "-eqlim 288". 288 = CUs * 8. I hate this magic, so I'm working on next update that will have good hashrates with 100% stable mining speed on both Windows and Linux. Just wait a few days.
thanks it works, bring back speeds:
on ubuntu same settings:
before:
ETH - Total Speed: 23.846 Mh/s, Total Shares: 0, Rejected: 0, Time: 00:00
ETH: GPU0 23.846 Mh/s
DCR - Total Speed: 929.999 Mh/s, Total Shares: 0, Rejected: 0
DCR: GPU0 929.999 Mh/s
after with -eqlim:
ETH - Total Speed: 24.045 Mh/s, Total Shares: 4, Rejected: 0, Time: 00:04
ETH: GPU0 24.045 Mh/s
DCR - Total Speed: 937.774 Mh/s, Total Shares: 1, Rejected: 0
DCR: GPU0 937.774 Mh/s