== sanity test 184c: Concurrent write and layout swap ==== 20:30:45 (1786840245) 65+0 records in 65+0 records out 68157440 bytes (68 MB, 65 MiB) copied, 3.79474 s, 18.0 MB/s 27+0 records in 27+0 records out 28311552 bytes (28 MB, 27 MiB) copied, 1.58437 s, 17.9 MB/s ref file size: ref1(68157440), ref2(28311552) 4160+0 records in 4160+0 records out 68157440 bytes (68 MB, 65 MiB) copied, 7.0524 s, 9.7 MB/s Copied 1277952 bytes before swapping layout...