I have an issue that I'm wondering if anyone else experiences. When I launch cudaminer, I immediately see it submitting at an extremely fast rate. Within the first 50 seconds, I have roughly 400 submitted shares, with about a 98% accept rate. At around this point, things nearly halt, and fall off quickly, (within a very few seconds), to about 1 every 5-15 seconds or so. I have tried a bunch of things to remedy this, but have found nothing that seems to help at all. (Currently mining Max @ Hashfaster, but happens everywhere.)
If I close and re-start, it goes right back to the fast speed. I have literally sat and closed/re-started for over an hour, every 45 seconds to 1:15 seconds, and achieved (of course) a much larger return per hour, so I know it's actually reporting correctly.
I'm at a loss - setting a higher priority does nothing, though I had had high hopes for that. Different connection settings (net adapter) - nothing. Making sure nothing else is accessing the internet while the miner is running - nothing. Using GPU-Z and Precision to monitor the cards, and load and TDP are not dropping off, even though they are clearly slowing drastically, as far as output (ie, shares submitted).
If anyone has anything they could share, I would be most grateful!
Hardware:
2x GTX 660's (2GB) - +65 Core, stock mem. @ ~85000 khash/s
i5-3570K @ 4.2
16GB 1600 RAM
Try leaving GeForce Experience open or running Chrome browser. Keeps my hashrates up with keccak and I know other people have noticed the same thing.
