== sanity test 184c: Concurrent write and layout swap ==== 15:14:15 (1789154055) 49+0 records in 49+0 records out 51380224 bytes (51 MB, 49 MiB) copied, 7.22626 s, 7.1 MB/s 63+0 records in 63+0 records out 66060288 bytes (66 MB, 63 MiB) copied, 9.8469 s, 6.7 MB/s ref file size: ref1(51380224), ref2(66060288) 3136+0 records in 3136+0 records out 51380224 bytes (51 MB, 49 MiB) copied, 11.7716 s, 4.4 MB/s Copied 376832 bytes before swapping layout...