[PATCH] D98179: [lit] Sort test start times based on prior test timing data

[David Zarzycki via Phabricator via llvm-commits]

davezarzycki added a comment.

In D98179#2611438 <https://reviews.llvm.org/D98179#2611438>, @lebedev.ri wrote:

> Nice!
> I think this should also be used to improve the ETA time prediction.
>
> Q: Where are these time files stored? I think it would not be good to store them next to the tests themselves.

There is a dot file named `.lit_test_times.txt` that lives in the output directory, a.k.a. the "exec_root" as far as `lit` is concerned. This same file can also *optionally* live alongside the `lit.cfg` files in the "source_root". In short, `lit` checks the exec_root first and then falls back to the source_root.


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https://reviews.llvm.org/D98179