== sanity test 184c: Concurrent write and layout swap ==== 21:14:44 (1788830084) 68+0 records in 68+0 records out 71303168 bytes (71 MB, 68 MiB) copied, 5.17675 s, 13.8 MB/s 68+0 records in 68+0 records out 71303168 bytes (71 MB, 68 MiB) copied, 4.77773 s, 14.9 MB/s ref file size: ref1(71303168), ref2(71303168) 4352+0 records in 4352+0 records out 71303168 bytes (71 MB, 68 MiB) copied, 8.56395 s, 8.3 MB/s Copied 1114112 bytes before swapping layout...