== sanity test 184c: Concurrent write and layout swap ==== 12:56:57 (1761325017) 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 0.760336 s, 66.2 MB/s 32+0 records in 32+0 records out 33554432 bytes (34 MB, 32 MiB) copied, 0.537178 s, 62.5 MB/s ref file size: ref1(50331648), ref2(33554432) 3072+0 records in 3072+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 0.768437 s, 65.5 MB/s Copied 8765440 bytes before swapping layout...