== sanity test 184c: Concurrent write and layout swap ==== 09:27:58 (1756819678) 28+0 records in 28+0 records out 29360128 bytes (29 MB, 28 MiB) copied, 1.57602 s, 18.6 MB/s 47+0 records in 47+0 records out 49283072 bytes (49 MB, 47 MiB) copied, 3.18617 s, 15.5 MB/s ref file size: ref1(29360128), ref2(49283072) 1792+0 records in 1792+0 records out 29360128 bytes (29 MB, 28 MiB) copied, 3.28595 s, 8.9 MB/s Copied 1327104 bytes before swapping layout...