== sanity test 184c: Concurrent write and layout swap ==== 17:37:25 (1788644245) 35+0 records in 35+0 records out 36700160 bytes (37 MB, 35 MiB) copied, 4.94979 s, 7.4 MB/s 24+0 records in 24+0 records out 25165824 bytes (25 MB, 24 MiB) copied, 2.45982 s, 10.2 MB/s ref file size: ref1(36700160), ref2(25165824) 2240+0 records in 2240+0 records out 36700160 bytes (37 MB, 35 MiB) copied, 10.9133 s, 3.4 MB/s Copied 557056 bytes before swapping layout...