== sanity test 184c: Concurrent write and layout swap ==== 05:40:44 (1788601244) 26+0 records in 26+0 records out 27262976 bytes (27 MB, 26 MiB) copied, 3.95951 s, 6.9 MB/s 37+0 records in 37+0 records out 38797312 bytes (39 MB, 37 MiB) copied, 5.69887 s, 6.8 MB/s ref file size: ref1(27262976), ref2(38797312) 1664+0 records in 1664+0 records out 27262976 bytes (27 MB, 26 MiB) copied, 7.48802 s, 3.6 MB/s Copied 376832 bytes before swapping layout...