== sanity test 184c: Concurrent write and layout swap ==== 18:25:29 (1788992729) 65+0 records in 65+0 records out 68157440 bytes (68 MB, 65 MiB) copied, 11.5801 s, 5.9 MB/s 39+0 records in 39+0 records out 40894464 bytes (41 MB, 39 MiB) copied, 6.05626 s, 6.8 MB/s ref file size: ref1(68157440), ref2(40894464) 4160+0 records in 4160+0 records out 68157440 bytes (68 MB, 65 MiB) copied, 24.5284 s, 2.8 MB/s Copied 606208 bytes before swapping layout...