== sanity test 184c: Concurrent write and layout swap ==== 03:36:04 (1786779364) 59+0 records in 59+0 records out 61865984 bytes (62 MB, 59 MiB) copied, 6.23301 s, 9.9 MB/s 26+0 records in 26+0 records out 27262976 bytes (27 MB, 26 MiB) copied, 2.97276 s, 9.2 MB/s ref file size: ref1(61865984), ref2(27262976) 3776+0 records in 3776+0 records out 61865984 bytes (62 MB, 59 MiB) copied, 12.4434 s, 5.0 MB/s Copied 638976 bytes before swapping layout...