== sanity test 184c: Concurrent write and layout swap ==== 06:55:26 (1788864926) 65+0 records in 65+0 records out 68157440 bytes (68 MB, 65 MiB) copied, 9.60022 s, 7.1 MB/s 46+0 records in 46+0 records out 48234496 bytes (48 MB, 46 MiB) copied, 7.18443 s, 6.7 MB/s ref file size: ref1(68157440), ref2(48234496) 4160+0 records in 4160+0 records out 68157440 bytes (68 MB, 65 MiB) copied, 20.8709 s, 3.3 MB/s Copied 704512 bytes before swapping layout...