== sanity test 184c: Concurrent write and layout swap ==== 09:30:50 (1786541450) 27+0 records in 27+0 records out 28311552 bytes (28 MB, 27 MiB) copied, 1.57558 s, 18.0 MB/s 58+0 records in 58+0 records out 60817408 bytes (61 MB, 58 MiB) copied, 3.39586 s, 17.9 MB/s ref file size: ref1(28311552), ref2(60817408) 1728+0 records in 1728+0 records out 28311552 bytes (28 MB, 27 MiB) copied, 2.62204 s, 10.8 MB/s Copied 1179648 bytes before swapping layout...