Deepbit uses a rolling 15min IIRC for speed calculation so just because it showed 2200 a day ago and now doesn't mean it was constantly 2200 over last 24 hours.
Averaging window is user-adjustable, it can be longer or shorter than 15 min.
Wait 1,666,814 shares in 24 hours? Sure about that? That is like 80GH/s.
This number shown on stats page is average pool's shares
per block during last 24 hours, not total shares (it's explained there).
So i checked my end for miner down's or failing clocks, or stales, Nothings changed.
But yet im being under calculated by 400mh/sec
Now i know the way that deebit measures how fast miners are going isnt entirely accurate, But a 400mh/s miscalculation lastin for a day now? Thats just Messed Up.
This measurement includes your personal luck, some part of pool's luck and a little bit of global network luck. It should not be used for precise calculations.
If you want it to be closer to reality, increase your averaging window to 40 or 60 minutes.