== sanity test 184c: Concurrent write and layout swap ==== 18:13:53 (1741904033) 42+0 records in 42+0 records out 44040192 bytes (44 MB) copied, 1.6656 s, 26.4 MB/s 21+0 records in 21+0 records out 22020096 bytes (22 MB) copied, 0.849338 s, 25.9 MB/s ref file size: ref1(44040192), ref2(22020096) 2688+0 records in 2688+0 records out 44040192 bytes (44 MB) copied, 3.23943 s, 13.6 MB/s Copied 1523712 bytes before swapping layout...