GPT-samples-control-sra-batching Ad Manager docs
The Google Publisher Tag (GPT) library's Single Request Architecture (SRA) mode batches multiple ad slots into a single ad request. This provides performance benefits, but is also necessary to guarantee that competitive exclusions and roadblocks are honored. By default, all ad slots defined prior to calling display() or refresh() will be batched and requested together when SRA mode is active. There are some situations where you may want more control over this batching behavior, however. For example, to prioritize the loading of specific slots or to avoid exceeding the maximum number of slots i
2,642 characters of text.