== sanity test 184c: Concurrent write and layout swap ==== 13:19:06 (1789147146) 21+0 records in 21+0 records out 22020096 bytes (22 MB, 21 MiB) copied, 3.67947 s, 6.0 MB/s 32+0 records in 32+0 records out 33554432 bytes (34 MB, 32 MiB) copied, 5.10383 s, 6.6 MB/s ref file size: ref1(22020096), ref2(33554432) 1344+0 records in 1344+0 records out 22020096 bytes (22 MB, 21 MiB) copied, 5.4205 s, 4.1 MB/s Copied 671744 bytes before swapping layout...