Just noticed that ckolivas commited a changeset a few hours ago with an update to the bitfury driver. Re-compiling from source, with those changes, made a difference in the numbers I was seeing in cgminer. Cgminer reported hash rate went from around 1.7-1.8Gh/s to around 2.2 - 2.5Gh/s.
I didn't think the changes would make such a difference, but there will be hardware errors reported now.
Anyway in case someone cares to try it, here's an updated windows binary with the changes:
http://ck.kolivas.org/apps/cgminer/temp/cgminer-nogpu.exeI'm not on Windows so I can't try that - checked out what's on git right now and didn't seem to make much difference (except now I am getting HW errors).
Before:
BF1 0: | 2.089G/2.037Gh/s | A:1538 R:2 HW:0 WU:29.4/m
After:
BF1 0: | 1.991G/1.973Gh/s | A:273 R:0 HW:114 WU:27.7/m
Anyone have any suggestions?