== sanity test 184c: Concurrent write and layout swap ==== 09:34:58 (1785418498) 51+0 records in 51+0 records out 53477376 bytes (53 MB, 51 MiB) copied, 10.3055 s, 5.2 MB/s 28+0 records in 28+0 records out 29360128 bytes (29 MB, 28 MiB) copied, 6.35027 s, 4.6 MB/s ref file size: ref1(53477376), ref2(29360128) 3264+0 records in 3264+0 records out 53477376 bytes (53 MB, 51 MiB) copied, 20.1241 s, 2.7 MB/s Copied 311296 bytes before swapping layout...