== sanity test 184c: Concurrent write and layout swap ==== 02:23:14 (1746080594) 23+0 records in 23+0 records out 24117248 bytes (24 MB) copied, 1.24512 s, 19.4 MB/s 30+0 records in 30+0 records out 31457280 bytes (31 MB) copied, 1.50761 s, 20.9 MB/s ref file size: ref1(24117248), ref2(31457280) 1472+0 records in 1472+0 records out 24117248 bytes (24 MB) copied, 2.38638 s, 10.1 MB/s Copied 1376256 bytes before swapping layout...