[PATCH] D136698: [SampleFDO] Persist profile staleness metrics into binary

[Wenlei He via Phabricator via llvm-commits]

wenlei added a comment.

In D136698#3883954 <https://reviews.llvm.org/D136698#3883954>, @davidxl wrote:

> For incremental build, are the artifacts (build logs) also cached?
>
> Anyway, I can see the usefulness of the post-build analysis case. However should we consider more general mechanism for message persistence? I will copy some folks in the review.

Yes, this should be more general than profile staleness. Actually the other use case we have in mind is for persisting static performance proxy, which can also be used as full reward function for MLGO.


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