== sanity test 184c: Concurrent write and layout swap ==== 20:26:49 (1787358409) 28+0 records in 28+0 records out 29360128 bytes (29 MB, 28 MiB) copied, 4.13718 s, 7.1 MB/s 55+0 records in 55+0 records out 57671680 bytes (58 MB, 55 MiB) copied, 8.36161 s, 6.9 MB/s ref file size: ref1(29360128), ref2(57671680) 1792+0 records in 1792+0 records out 29360128 bytes (29 MB, 28 MiB) copied, 7.80123 s, 3.8 MB/s Copied 589824 bytes before swapping layout...