== sanity test 184c: Concurrent write and layout swap ==== 13:51:14 (1787334674) 23+0 records in 23+0 records out 24117248 bytes (24 MB, 23 MiB) copied, 3.6818 s, 6.6 MB/s 60+0 records in 60+0 records out 62914560 bytes (63 MB, 60 MiB) copied, 9.45316 s, 6.7 MB/s ref file size: ref1(24117248), ref2(62914560) 1472+0 records in 1472+0 records out 24117248 bytes (24 MB, 23 MiB) copied, 7.90488 s, 3.1 MB/s Copied 393216 bytes before swapping layout...