== sanity test 184c: Concurrent write and layout swap ==== 22:26:47 (1781231207) 42+0 records in 42+0 records out 44040192 bytes (44 MB, 42 MiB) copied, 6.15556 s, 7.2 MB/s 66+0 records in 66+0 records out 69206016 bytes (69 MB, 66 MiB) copied, 10.5174 s, 6.6 MB/s ref file size: ref1(44040192), ref2(69206016) 2688+0 records in 2688+0 records out 44040192 bytes (44 MB, 42 MiB) copied, 16.2059 s, 2.7 MB/s Copied 491520 bytes before swapping layout...