== sanity test 184c: Concurrent write and layout swap ==== 04:59:23 (1781254763) 23+0 records in 23+0 records out 24117248 bytes (24 MB, 23 MiB) copied, 4.44 s, 5.4 MB/s 62+0 records in 62+0 records out 65011712 bytes (65 MB, 62 MiB) copied, 9.56068 s, 6.8 MB/s ref file size: ref1(24117248), ref2(65011712) 1472+0 records in 1472+0 records out 24117248 bytes (24 MB, 23 MiB) copied, 7.88841 s, 3.1 MB/s Copied 557056 bytes before swapping layout...