Has anyone else noticed any impact to standby time after updating v34 kernel?

I have changed back to v27 and again to v34 couple of times and noticed that battery will not last so long as previous OK version.

Here is one example. First quite flat graph, then short charging and a big impact to idle current consumption. Then I changed to v27 and nothing similar could be repeated. More or less similar if I change again back to v34. Also flat period is more flat with v27, difference is not huge.
All settings are similar when tested v34 and v27.

Could this latest kernel update cause more current to be drain from battery?