== sanity test 184c: Concurrent write and layout swap ==== 07:06:54 (1789384014) 49+0 records in 49+0 records out 51380224 bytes (51 MB, 49 MiB) copied, 8.54784 s, 6.0 MB/s 60+0 records in 60+0 records out 62914560 bytes (63 MB, 60 MiB) copied, 9.72783 s, 6.5 MB/s ref file size: ref1(51380224), ref2(62914560) 3136+0 records in 3136+0 records out 51380224 bytes (51 MB, 49 MiB) copied, 17.756 s, 2.9 MB/s Copied 589824 bytes before swapping layout...