🚀 The feature, motivation and pitch

see https://nvidia.slack.com/archives/C08T55LHSG4/p1763420398117449?thread_ts=1763416201.955419&cid=C08T55LHSG4

we want to support enable_iter_perf_stats for AD backend (analogous to PT backend). basically, this entails:

1. check what logs/stdout enable_iter_perf_stats produces
2. replicate the same logs/output for AD backend (lives in ADEngine)

Alternatives

No response

Additional context

No response

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