== sanity test 184c: Concurrent write and layout swap ==== 15:02:53 (1782241373) 44+0 records in 44+0 records out 46137344 bytes (46 MB, 44 MiB) copied, 6.77769 s, 6.8 MB/s 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 5.32505 s, 7.9 MB/s ref file size: ref1(46137344), ref2(41943040) 2816+0 records in 2816+0 records out 46137344 bytes (46 MB, 44 MiB) copied, 13.6524 s, 3.4 MB/s Copied 540672 bytes before swapping layout...