== sanity test 184c: Concurrent write and layout swap ==== 15:14:30 (1734120870) 52+0 records in 52+0 records out 54525952 bytes (55 MB) copied, 1.64863 s, 33.1 MB/s 40+0 records in 40+0 records out 41943040 bytes (42 MB) copied, 1.38047 s, 30.4 MB/s ref file size: ref1(54525952), ref2(41943040) 3328+0 records in 3328+0 records out 54525952 bytes (55 MB) copied, 3.47023 s, 15.7 MB/s Copied 1916928 bytes before swapping layout...