== sanity test 184c: Concurrent write and layout swap ==== 06:24:03 (1761301443) 43+0 records in 43+0 records out 45088768 bytes (45 MB, 43 MiB) copied, 2.75624 s, 16.4 MB/s 32+0 records in 32+0 records out 33554432 bytes (34 MB, 32 MiB) copied, 1.90418 s, 17.6 MB/s ref file size: ref1(45088768), ref2(33554432) 2752+0 records in 2752+0 records out 45088768 bytes (45 MB, 43 MiB) copied, 4.66974 s, 9.7 MB/s Copied 1228800 bytes before swapping layout...