== sanity test 184c: Concurrent write and layout swap ==== 05:44:19 (1759830259) 65+0 records in 65+0 records out 68157440 bytes (68 MB, 65 MiB) copied, 4.83801 s, 14.1 MB/s 38+0 records in 38+0 records out 39845888 bytes (40 MB, 38 MiB) copied, 2.89566 s, 13.8 MB/s ref file size: ref1(68157440), ref2(39845888) 4160+0 records in 4160+0 records out 68157440 bytes (68 MB, 65 MiB) copied, 8.32594 s, 8.2 MB/s Copied 1097728 bytes before swapping layout...