== sanity test 184c: Concurrent write and layout swap ==== 07:52:26 (1788868346) 32+0 records in 32+0 records out 33554432 bytes (34 MB, 32 MiB) copied, 3.64366 s, 9.2 MB/s 62+0 records in 62+0 records out 65011712 bytes (65 MB, 62 MiB) copied, 7.90078 s, 8.2 MB/s ref file size: ref1(33554432), ref2(65011712) 2048+0 records in 2048+0 records out 33554432 bytes (34 MB, 32 MiB) copied, 9.8116 s, 3.4 MB/s Copied 753664 bytes before swapping layout...