== sanity test 184c: Concurrent write and layout swap ==== 03:39:07 (1763887147) 29+0 records in 29+0 records out 30408704 bytes (30 MB, 29 MiB) copied, 2.07488 s, 14.7 MB/s 43+0 records in 43+0 records out 45088768 bytes (45 MB, 43 MiB) copied, 3.05166 s, 14.8 MB/s ref file size: ref1(30408704), ref2(45088768) 1856+0 records in 1856+0 records out 30408704 bytes (30 MB, 29 MiB) copied, 3.54182 s, 8.6 MB/s Copied 1097728 bytes before swapping layout...