== sanity test 184c: Concurrent write and layout swap ==== 14:12:51 (1788372771) 65+0 records in 65+0 records out 68157440 bytes (68 MB, 65 MiB) copied, 4.07754 s, 16.7 MB/s 58+0 records in 58+0 records out 60817408 bytes (61 MB, 58 MiB) copied, 3.45106 s, 17.6 MB/s ref file size: ref1(68157440), ref2(60817408) 4160+0 records in 4160+0 records out 68157440 bytes (68 MB, 65 MiB) copied, 7.57343 s, 9.0 MB/s Copied 1343488 bytes before swapping layout...