== sanity test 184c: Concurrent write and layout swap ==== 15:16:12 (1788549372) 38+0 records in 38+0 records out 39845888 bytes (40 MB, 38 MiB) copied, 6.03054 s, 6.6 MB/s 51+0 records in 51+0 records out 53477376 bytes (53 MB, 51 MiB) copied, 7.14778 s, 7.5 MB/s ref file size: ref1(39845888), ref2(53477376) 2432+0 records in 2432+0 records out 39845888 bytes (40 MB, 38 MiB) copied, 12.9099 s, 3.1 MB/s Copied 606208 bytes before swapping layout...