== sanity test 184c: Concurrent write and layout swap ==== 01:04:22 (1788671062) 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.11467 s, 9.8 MB/s 42+0 records in 42+0 records out 44040192 bytes (44 MB, 42 MiB) copied, 4.08211 s, 10.8 MB/s ref file size: ref1(50331648), ref2(44040192) 3072+0 records in 3072+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 10.483 s, 4.8 MB/s Copied 983040 bytes before swapping layout...