Number of impressions for pages with multiple ads

I am increasing the number of adsense ads on some of my pages to 2 or more. In the adsense report will this show up as 1 impression per page, or will there be an impression per ad?

 

It's per page view

If you have different channels on each page, it will break down how many times each channel was viewed. So your channel total impressions will probably be higher than your total impressions.

 

All impressions will be counted separately as far as i know

 

from my experience, each pageview will produce 1 impression, even if you have 1 or 5 ads on it.

 

Right. That is true. 1 impression = 1 page view

 

No

Total impressions are averaged out
Channels show individual impressions.
eCPM is a total of all channel eCPM

Check it yourself.

 

Impressions will be seperate unless you select a channel of each ad unit. The seperate channel's will be tracked by impressions per ad unit.