== sanity test 184c: Concurrent write and layout swap ==== 22:57:30 (1708833450) 30+0 records in 30+0 records out 31457280 bytes (31 MB) copied, 0.811594 s, 38.8 MB/s 67+0 records in 67+0 records out 70254592 bytes (70 MB) copied, 1.7321 s, 40.6 MB/s ref file size: ref1(31457280), ref2(70254592) 1920+0 records in 1920+0 records out 31457280 bytes (31 MB) copied, 2.02161 s, 15.6 MB/s Copied 2375680 bytes before swapping layout...