pytorch

b10d6c60 - [caffe2] cache NextName indexes for faster name generation (#47768)

[caffe2] cache NextName indexes for faster name generation (#47768) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/47768 This stores the next ID for a given NextName(prefix, output_id) so repeated calls to NextName are significantly faster. This accounts for ~65% of time spent for large models. Test Plan: buck test //caffe2/caffe2/python/... will launch canary job before landing to ensure no regressions + confirm speedup Reviewed By: dzhulgakov Differential Revision: D24876961 fbshipit-source-id: 668d73060d800513bc72d7cd405a47d15c4acc34