== sanity test 184c: Concurrent write and layout swap ==== 15:03:41 (1750187021) 22+0 records in 22+0 records out 23068672 bytes (23 MB) copied, 0.850464 s, 27.1 MB/s 20+0 records in 20+0 records out 20971520 bytes (21 MB) copied, 0.807203 s, 26.0 MB/s ref file size: ref1(23068672), ref2(20971520) 1408+0 records in 1408+0 records out 23068672 bytes (23 MB) copied, 2.36715 s, 9.7 MB/s Copied 1310720 bytes before swapping layout...