== sanity test 184c: Concurrent write and layout swap ==== 09:27:54 (1785418074) 49+0 records in 49+0 records out 51380224 bytes (51 MB, 49 MiB) copied, 10.9629 s, 4.7 MB/s 45+0 records in 45+0 records out 47185920 bytes (47 MB, 45 MiB) copied, 8.94495 s, 5.3 MB/s ref file size: ref1(51380224), ref2(47185920) 3136+0 records in 3136+0 records out 51380224 bytes (51 MB, 49 MiB) copied, 20.5846 s, 2.5 MB/s Copied 180224 bytes before swapping layout...