Something broken there dude. There is no requested boost at all until 3000 rpm for some reason, the 1010mb is just atmospheric pressure. Any fault codes at all? Your MAF readings appear to be screwy before 3000rpm too. Was your foot flat to the floor on the pedal from 2000 to 5000?
It'd be handy if you could get more logs but individual values, so that you get a higher sample rate. Logging 3 MVB's at once is a bit slow on mk4 ecus. Fire the csv files over to me topher@golfgti.co.uk and i can chart them to make a bit more sense for you.