== sanity test 184c: Concurrent write and layout swap ==== 15:38:29 (1788550709) 68+0 records in 68+0 records out 71303168 bytes (71 MB, 68 MiB) copied, 11.3809 s, 6.3 MB/s 47+0 records in 47+0 records out 49283072 bytes (49 MB, 47 MiB) copied, 7.39466 s, 6.7 MB/s ref file size: ref1(71303168), ref2(49283072) 4352+0 records in 4352+0 records out 71303168 bytes (71 MB, 68 MiB) copied, 21.9761 s, 3.2 MB/s Copied 458752 bytes before swapping layout...