== sanity test 184c: Concurrent write and layout swap ==== 15:15:13 (1733170513) 63+0 records in 63+0 records out 66060288 bytes (66 MB) copied, 2.00444 s, 33.0 MB/s 52+0 records in 52+0 records out 54525952 bytes (55 MB) copied, 1.6399 s, 33.2 MB/s ref file size: ref1(66060288), ref2(54525952) 4032+0 records in 4032+0 records out 66060288 bytes (66 MB) copied, 4.27906 s, 15.4 MB/s Copied 1638400 bytes before swapping layout...