== sanity test 184c: Concurrent write and layout swap ==== 01:07:47 (1772431667) 44+0 records in 44+0 records out 46137344 bytes (46 MB, 44 MiB) copied, 2.55121 s, 18.1 MB/s 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 2.37168 s, 17.7 MB/s ref file size: ref1(46137344), ref2(41943040) 2816+0 records in 2816+0 records out 46137344 bytes (46 MB, 44 MiB) copied, 4.97786 s, 9.3 MB/s Copied 1228800 bytes before swapping layout...