matteosal commented on issue #20109:
URL: 
https://github.com/apache/incubator-mxnet/issues/20109#issuecomment-820556774


   More on the cached op flags: 
   > These are flags for bulk execution. When bulk execution happens with 
forward_bulk_size=x, x number of operators will be executed in one call to the 
engine (scheduler) instead of x separate calls, so that the scheduling overhead 
is amortized.
   
   Since this is an option to set, I guess there is a downside to running a 
large number of operators in one call. What is it? Increased memory usage? Is 
there a similar tradeoff for `inline_limit`?


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