== sanity test 184c: Concurrent write and layout swap ==== 19:03:34 (1760137414) 47+0 records in 47+0 records out 49283072 bytes (49 MB, 47 MiB) copied, 2.59677 s, 19.0 MB/s 35+0 records in 35+0 records out 36700160 bytes (37 MB, 35 MiB) copied, 1.95498 s, 18.8 MB/s ref file size: ref1(49283072), ref2(36700160) 3008+0 records in 3008+0 records out 49283072 bytes (49 MB, 47 MiB) copied, 4.258 s, 11.6 MB/s Copied 1294336 bytes before swapping layout...