== sanity test 184c: Concurrent write and layout swap ==== 13:49:32 (1776880172) 43+0 records in 43+0 records out 45088768 bytes (45 MB, 43 MiB) copied, 3.12678 s, 14.4 MB/s 50+0 records in 50+0 records out 52428800 bytes (52 MB, 50 MiB) copied, 3.55776 s, 14.7 MB/s ref file size: ref1(45088768), ref2(52428800) 2752+0 records in 2752+0 records out 45088768 bytes (45 MB, 43 MiB) copied, 4.95917 s, 9.1 MB/s Copied 1114112 bytes before swapping layout...