There are several places where we don't have to call Object.keys(). In some stress tests, these can be called a lot, resulting in lots of overhead.
Remove 2 of these Object.keys() calls in the graph - when scheduling and unscheduling node destruction. Instead add a refCount counter that we manually keep in sync with the dependents count.
Description
There are several places where we don't have to call
Object.keys(). In some stress tests, these can be called a lot, resulting in lots of overhead.Remove 2 of these
Object.keys()calls in the graph - when scheduling and unscheduling node destruction. Instead add arefCountcounter that we manually keep in sync with the dependents count.