== sanity test 184c: Concurrent write and layout swap ==== 17:09:40 (1780348180) 21+0 records in 21+0 records out 22020096 bytes (22 MB, 21 MiB) copied, 1.62728 s, 13.5 MB/s 46+0 records in 46+0 records out 48234496 bytes (48 MB, 46 MiB) copied, 3.62979 s, 13.3 MB/s ref file size: ref1(22020096), ref2(48234496) 1344+0 records in 1344+0 records out 22020096 bytes (22 MB, 21 MiB) copied, 3.70111 s, 5.9 MB/s Copied 966656 bytes before swapping layout...