== sanity test 184c: Concurrent write and layout swap ==== 20:58:02 (1746147482) 31+0 records in 31+0 records out 32505856 bytes (33 MB) copied, 3.0878 s, 10.5 MB/s 43+0 records in 43+0 records out 45088768 bytes (45 MB) copied, 4.30998 s, 10.5 MB/s ref file size: ref1(32505856), ref2(45088768) 1984+0 records in 1984+0 records out 32505856 bytes (33 MB) copied, 6.77682 s, 4.8 MB/s Copied 983040 bytes before swapping layout...