== sanity test 184c: Concurrent write and layout swap ==== 16:25:55 (1790972755) 26+0 records in 26+0 records out 27262976 bytes (27 MB, 26 MiB) copied, 4.08388 s, 6.7 MB/s 56+0 records in 56+0 records out 58720256 bytes (59 MB, 56 MiB) copied, 8.55117 s, 6.9 MB/s ref file size: ref1(27262976), ref2(58720256) 1664+0 records in 1664+0 records out 27262976 bytes (27 MB, 26 MiB) copied, 8.00739 s, 3.4 MB/s Copied 425984 bytes before swapping layout...