== sanity test 184c: Concurrent write and layout swap ==== 11:08:28 (1789139308) 54+0 records in 54+0 records out 56623104 bytes (57 MB, 54 MiB) copied, 8.33563 s, 6.8 MB/s 35+0 records in 35+0 records out 36700160 bytes (37 MB, 35 MiB) copied, 5.46657 s, 6.7 MB/s ref file size: ref1(56623104), ref2(36700160) 3456+0 records in 3456+0 records out 56623104 bytes (57 MB, 54 MiB) copied, 16.3605 s, 3.5 MB/s Copied 458752 bytes before swapping layout...