== sanity test 184c: Concurrent write and layout swap ==== 02:46:44 (1746082004) 22+0 records in 22+0 records out 23068672 bytes (23 MB) copied, 1.48123 s, 15.6 MB/s 52+0 records in 52+0 records out 54525952 bytes (55 MB) copied, 3.23734 s, 16.8 MB/s ref file size: ref1(23068672), ref2(54525952) 1408+0 records in 1408+0 records out 23068672 bytes (23 MB) copied, 2.43622 s, 9.5 MB/s Copied 1064960 bytes before swapping layout...