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diff --git a/doc/tips/Repositories_with_large_number_of_files/comment_12_e1f3b19d1dd62b1c9314e1e826fec54f._comment b/doc/tips/Repositories_with_large_number_of_files/comment_12_e1f3b19d1dd62b1c9314e1e826fec54f._comment
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+[[!comment format=mdwn
+ username="jgoerzen"
+ avatar="http://cdn.libravatar.org/avatar/090740822c9dcdb39ffe506b890981b4"
+ subject="comment 12"
+ date="2022-09-05T01:01:59Z"
+ content="""
+To expand: this took about 2 hours to run.  A git annex sync from another git annex repo is a lot faster (a minute or so).  It is the directory remote that's so slow.  Examining with strace and lsof, I don't believe this is chechsumming.  In fact, it seems to be mostly continuous reading from cidsdb/db, which is only 49MB in size and therefore certainly cached.  The process is entirely CPU-bound.
+"""]]