== sanity test 184c: Concurrent write and layout swap ==== 22:39:21 (1746153561) 23+0 records in 23+0 records out 24117248 bytes (24 MB) copied, 1.47448 s, 16.4 MB/s 47+0 records in 47+0 records out 49283072 bytes (49 MB) copied, 3.03629 s, 16.2 MB/s ref file size: ref1(24117248), ref2(49283072) 1472+0 records in 1472+0 records out 24117248 bytes (24 MB) copied, 3.46715 s, 7.0 MB/s Copied 1114112 bytes before swapping layout...