== sanity test 184c: Concurrent write and layout swap ==== 17:46:34 (1783979194) 66+0 records in 66+0 records out 69206016 bytes (69 MB, 66 MiB) copied, 4.30779 s, 16.1 MB/s 26+0 records in 26+0 records out 27262976 bytes (27 MB, 26 MiB) copied, 1.79394 s, 15.2 MB/s ref file size: ref1(69206016), ref2(27262976) 4224+0 records in 4224+0 records out 69206016 bytes (69 MB, 66 MiB) copied, 8.66414 s, 8.0 MB/s Copied 1064960 bytes before swapping layout...