== sanity test 184c: Concurrent write and layout swap ==== 19:08:04 (1746140884) 23+0 records in 23+0 records out 24117248 bytes (24 MB) copied, 1.05501 s, 22.9 MB/s 24+0 records in 24+0 records out 25165824 bytes (25 MB) copied, 1.15253 s, 21.8 MB/s ref file size: ref1(24117248), ref2(25165824) 1472+0 records in 1472+0 records out 24117248 bytes (24 MB) copied, 2.19356 s, 11.0 MB/s Copied 1376256 bytes before swapping layout...