Top quark pair production measurements using the ATLAS detector at the LHC

Inclusive and differential cross sections of top quark pair production at have been measured with the ATLAS detector at the LHC at s=7 TeV and s=8 TeV. Inclusive measurements are in good agreement with Standard Model predictions. Differential cross section measurements are compared to different sets of generators, parton showering and hadronization simulations, PDF and calculations. This provides constraints to improve the MC modeling.