Y-axis numbers approximately half of pageviews per second

I wrote a simple bash/curl script (direct call to the pixel) to simulate traffic and noticed once load is placed on the Hummingbird server the reported pageviews per second is approximately double the corresponding y-axis value (or y-axis values are half the number of page views, which ever you prefer). For example: If Hummingbird is reporting 30 pageviews/second the average y-axis value is somewhere around 14-15. (See linked photo: http://i103.photobucket.com/albums/m145/xtmesisx/Screenshot2011-07-21at30218PM.png)

I suspect that the logic generating the y-axis values is off (display issue), but I'm not sure what to change. I've been fiddling with it for a few hours now and haven't figured it out yet.

Does anyone have thoughts on the matter?

So I believe I found the problem. The variable "averageOver" (Line 27) is set to 0.5 by default. I'm not 100% sure what it does, but it looks like the "averageOver" is passed into the function drawLogPath() when it multiplied by "average" on line 49. To fix my issue I simply set "averageOver" to 1.0.

If anybody could explain further and/or verify I'm correct/on the right path it would be greatly appreciated. For now pageviews per second the the y-axises seem to match up (tested again with traffic simulation script).