So Im guessing that like most of the other neat features, auto-tuning doesnt work for nvidia cards? The miner gives no feedback on My nvidia rig that auto tuning is doing anything. On my AMD rig it explicitly says in yellow text that auto-tuning is running.
also your readme file is not updated with any new information about the new features or usage.
Yes, the auto-tuning is only for AMD cards as it changes the GT parameter. We have tried to do something similar for Nvidia cards but they aren't affected by it. This is because the Nvidia cards are more balanced in terms of compute capability vs memory bandwidth and don't benefit from this kind of fine tuning. We are working on HW OC settings for Nvidia cards though, and it should be ready for the next version (3.1).
The new features and changes are moved in the ReleaseNotes.txt file because Readme.txt became too cluttered. Of course, the Readme.txt contains all current information about the command-line options.
Thats what Im saying. Not all of the commandline info is in the readme file. I didnt see any mention of the useage for the Z or X key options in the command window while the miner is running.