== sanity test 184c: Concurrent write and layout swap ==== 16:54:31 (1767045271) 22+0 records in 22+0 records out 23068672 bytes (23 MB, 22 MiB) copied, 1.20345 s, 19.2 MB/s 20+0 records in 20+0 records out 20971520 bytes (21 MB, 20 MiB) copied, 1.06821 s, 19.6 MB/s ref file size: ref1(23068672), ref2(20971520) 1408+0 records in 1408+0 records out 23068672 bytes (23 MB, 22 MiB) copied, 2.21936 s, 10.4 MB/s Copied 1622016 bytes before swapping layout...