== sanity test 184c: Concurrent write and layout swap ==== 17:53:40 (1780350820) 37+0 records in 37+0 records out 38797312 bytes (39 MB, 37 MiB) copied, 2.14584 s, 18.1 MB/s 34+0 records in 34+0 records out 35651584 bytes (36 MB, 34 MiB) copied, 2.03285 s, 17.5 MB/s ref file size: ref1(38797312), ref2(35651584) 2368+0 records in 2368+0 records out 38797312 bytes (39 MB, 37 MiB) copied, 3.85465 s, 10.1 MB/s Copied 1490944 bytes before swapping layout...