== sanity test 184c: Concurrent write and layout swap ==== 22:46:02 (1781232362) 42+0 records in 42+0 records out 44040192 bytes (44 MB, 42 MiB) copied, 7.31382 s, 6.0 MB/s 35+0 records in 35+0 records out 36700160 bytes (37 MB, 35 MiB) copied, 6.83686 s, 5.4 MB/s ref file size: ref1(44040192), ref2(36700160) 2688+0 records in 2688+0 records out 44040192 bytes (44 MB, 42 MiB) copied, 8.8833 s, 5.0 MB/s Copied 442368 bytes before swapping layout...