== sanity test 184c: Concurrent write and layout swap ==== 06:04:03 (1747217043) 52+0 records in 52+0 records out 54525952 bytes (55 MB) copied, 1.65763 s, 32.9 MB/s 22+0 records in 22+0 records out 23068672 bytes (23 MB) copied, 0.742814 s, 31.1 MB/s ref file size: ref1(54525952), ref2(23068672) 3328+0 records in 3328+0 records out 54525952 bytes (55 MB) copied, 3.2725 s, 16.7 MB/s Copied 1818624 bytes before swapping layout...