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+What steps will reproduce the problem?
+
+As described in http://git-annex.branchable.com/backends/#comment-3c1cd45d2a015b4fc412dd813293ad7d , sha512 is faster. On my 64-bit system, the speed difference is about 1.5times.
+
+What is the expected output? What do you see instead?
+
+
+What version of git-annex are you using? On what operating system?
+
+
+Please provide any additional information below.
+
+