diff --git a/doc/todo/incremental_hashing_for_add/comment_2_30b4c0f3b1c13e9a1a2ddba5f88eb6ee._comment b/doc/todo/incremental_hashing_for_add/comment_2_30b4c0f3b1c13e9a1a2ddba5f88eb6ee._comment
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+[[!comment format=mdwn
+ username="joey"
+ subject="""comment 2"""
+ date="2021-12-01T16:59:50Z"
+ content="""
+Thanks @adina.wagner that is very useful. Seems reliable enough despite the
+other workload, to say that the overhead on Windows is around 14%-33%.
+Interesting that the worst case is with the smallest file.
+"""]]