[static runtime] Pre-allocate hash tables (#65343)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/65343
No reason not to save a bit on re-hashing.
ghstack-source-id: 140052518
Test Plan:
CI
Static runtime startup seems to go from 5.9-6.0s to 5.8s-6.0s, perf shows less time spent rehashing
Reviewed By: mikeiovine
Differential Revision: D31027362
fbshipit-source-id: 39dd53ecd462693b518535856ddd92df78a4977b
