== sanity test 184c: Concurrent write and layout swap ==== 11:53:30 (1760457210) 69+0 records in 69+0 records out 72351744 bytes (72 MB, 69 MiB) copied, 1.06244 s, 68.1 MB/s 50+0 records in 50+0 records out 52428800 bytes (52 MB, 50 MiB) copied, 0.736002 s, 71.2 MB/s ref file size: ref1(72351744), ref2(52428800) 4416+0 records in 4416+0 records out 72351744 bytes (72 MB, 69 MiB) copied, 1.11932 s, 64.6 MB/s Copied 7962624 bytes before swapping layout...