== sanity test 184c: Concurrent write and layout swap ==== 22:09:13 (1746151753) 24+0 records in 24+0 records out 25165824 bytes (25 MB) copied, 1.75212 s, 14.4 MB/s 40+0 records in 40+0 records out 41943040 bytes (42 MB) copied, 2.34672 s, 17.9 MB/s ref file size: ref1(25165824), ref2(41943040) 1536+0 records in 1536+0 records out 25165824 bytes (25 MB) copied, 3.24754 s, 7.7 MB/s Copied 1261568 bytes before swapping layout...