== sanity test 184c: Concurrent write and layout swap ==== 15:19:27 (1789327167) 32+0 records in 32+0 records out 33554432 bytes (34 MB, 32 MiB) copied, 1.947 s, 17.2 MB/s 31+0 records in 31+0 records out 32505856 bytes (33 MB, 31 MiB) copied, 1.95777 s, 16.6 MB/s ref file size: ref1(33554432), ref2(32505856) 2048+0 records in 2048+0 records out 33554432 bytes (34 MB, 32 MiB) copied, 3.50512 s, 9.6 MB/s Copied 1294336 bytes before swapping layout...