== sanity test 184c: Concurrent write and layout swap ==== 05:51:23 (1772189483) 21+0 records in 21+0 records out 22020096 bytes (22 MB, 21 MiB) copied, 1.25823 s, 17.5 MB/s 23+0 records in 23+0 records out 24117248 bytes (24 MB, 23 MiB) copied, 1.3096 s, 18.4 MB/s ref file size: ref1(22020096), ref2(24117248) 1344+0 records in 1344+0 records out 22020096 bytes (22 MB, 21 MiB) copied, 2.65733 s, 8.3 MB/s Copied 1228800 bytes before swapping layout...