== sanity test 184c: Concurrent write and layout swap ==== 12:17:39 (1729095459) 21+0 records in 21+0 records out 22020096 bytes (22 MB) copied, 0.749436 s, 29.4 MB/s 31+0 records in 31+0 records out 32505856 bytes (33 MB) copied, 1.04738 s, 31.0 MB/s ref file size: ref1(22020096), ref2(32505856) 1344+0 records in 1344+0 records out 22020096 bytes (22 MB) copied, 1.65055 s, 13.3 MB/s Copied 1867776 bytes before swapping layout...