== sanity test 184c: Concurrent write and layout swap ==== 10:08:09 (1774534089) 31+0 records in 31+0 records out 32505856 bytes (33 MB, 31 MiB) copied, 0.507687 s, 64.0 MB/s 47+0 records in 47+0 records out 49283072 bytes (49 MB, 47 MiB) copied, 0.723917 s, 68.1 MB/s ref file size: ref1(32505856), ref2(49283072) 1984+0 records in 1984+0 records out 32505856 bytes (33 MB, 31 MiB) copied, 0.513789 s, 63.3 MB/s Copied 7585792 bytes before swapping layout...