== sanity test 184c: Concurrent write and layout swap ==== 01:44:10 (1790401450) 69+0 records in 69+0 records out 72351744 bytes (72 MB, 69 MiB) copied, 3.96552 s, 18.2 MB/s 57+0 records in 57+0 records out 59768832 bytes (60 MB, 57 MiB) copied, 3.35457 s, 17.8 MB/s ref file size: ref1(72351744), ref2(59768832) 4416+0 records in 4416+0 records out 72351744 bytes (72 MB, 69 MiB) copied, 7.07639 s, 10.2 MB/s Copied 1196032 bytes before swapping layout...