David Allemang d36b03b4f9 Add Block-Allocation of lst pointers ...

Profiling revealed significant performance overhead in using std::shared_ptr for lst.

There is even significant overhead in using new for lst.

Using pointers to blocks of pre-allocated memory for lst drastically improves performance (about 50%).

E7 and E8 show this well, since they allocate many lst pointers.

With shared_ptr: E7 ~3.3s, B8 ~21s.

With BlockAllocator: E7 ~1.6s, B8 ~11s.

2021-11-01 15:59:10 -04:00

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Add Block-Allocation of lst pointers

2021-11-01 15:59:10 -04:00