== sanity test 184c: Concurrent write and layout swap ==== 10:11:13 (1788531073) 42+0 records in 42+0 records out 44040192 bytes (44 MB, 42 MiB) copied, 7.65933 s, 5.7 MB/s 49+0 records in 49+0 records out 51380224 bytes (51 MB, 49 MiB) copied, 7.43229 s, 6.9 MB/s ref file size: ref1(44040192), ref2(51380224) 2688+0 records in 2688+0 records out 44040192 bytes (44 MB, 42 MiB) copied, 14.3647 s, 3.1 MB/s Copied 458752 bytes before swapping layout...