== sanity test 184c: Concurrent write and layout swap ==== 14:34:44 (1789151684) 44+0 records in 44+0 records out 46137344 bytes (46 MB, 44 MiB) copied, 6.52281 s, 7.1 MB/s 35+0 records in 35+0 records out 36700160 bytes (37 MB, 35 MiB) copied, 5.02804 s, 7.3 MB/s ref file size: ref1(46137344), ref2(36700160) 2816+0 records in 2816+0 records out 46137344 bytes (46 MB, 44 MiB) copied, 9.89951 s, 4.7 MB/s Copied 638976 bytes before swapping layout...