== sanity test 184c: Concurrent write and layout swap ==== 19:45:13 (1736988313) 51+0 records in 51+0 records out 53477376 bytes (53 MB) copied, 0.739802 s, 72.3 MB/s 63+0 records in 63+0 records out 66060288 bytes (66 MB) copied, 0.802011 s, 82.4 MB/s ref file size: ref1(53477376), ref2(66060288) 3264+0 records in 3264+0 records out 53477376 bytes (53 MB) copied, 0.672798 s, 79.5 MB/s Copied 8486912 bytes before swapping layout...