== sanity test 184c: Concurrent write and layout swap ==== 13:49:41 (1788630581) 35+0 records in 35+0 records out 36700160 bytes (37 MB, 35 MiB) copied, 3.36798 s, 10.9 MB/s 41+0 records in 41+0 records out 42991616 bytes (43 MB, 41 MiB) copied, 3.77929 s, 11.4 MB/s ref file size: ref1(36700160), ref2(42991616) 2240+0 records in 2240+0 records out 36700160 bytes (37 MB, 35 MiB) copied, 7.76144 s, 4.7 MB/s Copied 589824 bytes before swapping layout...