2 The following case can be non-SC.
5 put(k1, v1); // a put(k2, v2); // c
6 get(k2); // b get(k1); // d
8 When b and d both read the old head of the list (and they later grab the lock,
9 making it the interface SC), it's non-SC because neither reads the updated
12 Run testcase1 to make the store and load of value slot to be seq_cst.
14 Then run testcase2 with "-o annotation" to get store and load of key slot to be
17 0m0.015s + 0m0.000 = 0m0.015s