search

fireice-uk / xmr-stak-amd

Monero AMD miner
GNU General Public License v3.0
193 stars 114 forks source link

changes to optimize scratchpad layout hurt performance on some arch #143

Open 0xsebb opened 6 years ago

0xsebb commented 6 years ago

the scratchpad layout optimization hurts Performance at least on polaris 12 chip. It boils down to cache size, i guess. My hasrate sinks from 430h/s to 415h/s with the same settings. Changing the Settings does not help, these are optimal in both cases. A polaris 11 is not affected, but it does not benefit from the changes either.

fireice-uk commented 6 years ago

Thanks. Commit link af01b2f16

psychocrypt commented 6 years ago

I will check it, maybe I will add an option that the user can choose between both scratchpad patterns to fine tune the miner.