== sanity test 184c: Concurrent write and layout swap ==== 12:50:38 (1784134238) 55+0 records in 55+0 records out 57671680 bytes (58 MB, 55 MiB) copied, 3.26452 s, 17.7 MB/s 34+0 records in 34+0 records out 35651584 bytes (36 MB, 34 MiB) copied, 1.83479 s, 19.4 MB/s ref file size: ref1(57671680), ref2(35651584) 3520+0 records in 3520+0 records out 57671680 bytes (58 MB, 55 MiB) copied, 5.46638 s, 10.6 MB/s Copied 1327104 bytes before swapping layout...