Operating frequency of pixhawk?

My understanding is px4 stack runs at the frequency of 400hz. That means all controllers are getting updated at the rate of 400hz. I want to know one thing at what rate px4 sends signals(pwm values) to esc and motors? Is it 400hz or less?


Most of the sensors actually run at 250Hz, and so does the output.
Use uorb top on the console to see at which frequency each data is published.