== sanity test 184c: Concurrent write and layout swap ==== 06:00:25 (1780394425) 65+0 records in 65+0 records out 68157440 bytes (68 MB, 65 MiB) copied, 3.83207 s, 17.8 MB/s 52+0 records in 52+0 records out 54525952 bytes (55 MB, 52 MiB) copied, 3.09428 s, 17.6 MB/s ref file size: ref1(68157440), ref2(54525952) 4160+0 records in 4160+0 records out 68157440 bytes (68 MB, 65 MiB) copied, 6.91806 s, 9.9 MB/s Copied 1441792 bytes before swapping layout...