Adopt dynamo cache size to current layer definition #737
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Adopt setting dynamo cache size to current behavior where number of graphs in compilation in one forward path is equal:
number of LlamaDecoderLayer's + 2 (RMSNorm, VocabParallelEmbedding)
It is other approach to prepare hot fix after performance regression introduced by vllm-project#11967.
The hot fix #709 restores previous performance results for torch compile mode.
This one partially recover throughput but with big cost of warmup time - as after it much more graphs are compiled during warmup.
Without increasing the cache size torch.compile reach the limits and goes in eager mode which gives low throughput .