Which is the better way to use AdaLayerNormZero?

[JohnHerry]

I had read the code of class AdaLayerNormZero, it seems there are two ways to use this module on timestep_embedding, One way is the emb will be a value from outside this module, Another way, is to set the num_embeddings initial param to make this AdaLayerNormZero module to keep its time_embedding layer weights.
The first way will save time_embedding weights (in the self.emb=CombinedTimestepLableEmbeddings), to let all DiT AdaLayerNormZero blocks share a single set of time_embedding weights; While the second way makes each AdaLayerNormZero keep independent time_embedding weights.
The second way is more costly, but will it make better performance at the whole model?