== sanity test 184c: Concurrent write and layout swap ==== 01:03:09 (1787461389) 31+0 records in 31+0 records out 32505856 bytes (33 MB, 31 MiB) copied, 4.55069 s, 7.1 MB/s 68+0 records in 68+0 records out 71303168 bytes (71 MB, 68 MiB) copied, 9.89801 s, 7.2 MB/s ref file size: ref1(32505856), ref2(71303168) 1984+0 records in 1984+0 records out 32505856 bytes (33 MB, 31 MiB) copied, 9.61861 s, 3.4 MB/s Copied 475136 bytes before swapping layout...