you may want to have a look at this white paper:
It is about Oracle 10g and there have some enhancements in the meantime but it
includes impact analysis / results.
Independent Oracle performance consultant and researcher
Jack van Zanen <jack@xxxxxxxxxxxx> hat am 14. November 2017 um 04:21--
I was wondering if anyone had done any testing on the overhead of Dataguard
on the primary system?
We would like to setup dataguard for one of our systems and the business can
most likely not accept a performance degredation of the nightly batch job.
Now I understand that we have to turn on force logging and depending on the
amount of nologging that is happening in the batch this could be a
considerable overhead, I am just wondering besides this what the impacts are
in maximum performance and maximum availability and maximum protection mode.
I can turn on force logging without having to set up dataguard.
Let's assume for now that the network can keep up with the changes.....
Jack van Zanen