I'm wondering if the variance i'm see'ing is normal, for some reason i feel paranoid enough to ask if this is normal, I know some amount of variance is normal.
The rigs i have working are
2x6950's @ ~385 MH/s each
3x6870's @ ~300 MH/s each
3x 6870's @ ~290 MH/s each
Total: ~2840 MH/s
When i "F5" on the page the variance is anywhere from 1400MH/s to 2600MH/s, maybe once have i seen it in the 2800's. I expected the variance to be no larger than ~300MH/s up or down from 2700MH/s. The 6870's are on Phoenix with Phatk2, same flags, the 6950's are on poclbm, they're all getting shares and showing work submitted, they are all 98~99% usage steady, clocks are all stable no downclocking going on, CPU usage is normal and the Mhash display on GUIminer is steady within 1 MH/s.
It may be coincidence but i can hit 2600+ once i sign out of these forums, while here it looks like it's having a hard time going over 2000 MHash, i almost feel like my work is being shifted, what do you think does that variance sound normal?