== sanity test 184c: Concurrent write and layout swap ==== 11:19:19 (1789312759) 34+0 records in 34+0 records out 35651584 bytes (36 MB, 34 MiB) copied, 4.4652 s, 8.0 MB/s 32+0 records in 32+0 records out 33554432 bytes (34 MB, 32 MiB) copied, 4.24928 s, 7.9 MB/s ref file size: ref1(35651584), ref2(33554432) 2176+0 records in 2176+0 records out 35651584 bytes (36 MB, 34 MiB) copied, 8.94185 s, 4.0 MB/s Copied 557056 bytes before swapping layout...