== sanity test 184c: Concurrent write and layout swap ==== 16:05:21 (1787601921) 33+0 records in 33+0 records out 34603008 bytes (35 MB, 33 MiB) copied, 4.9172 s, 7.0 MB/s 37+0 records in 37+0 records out 38797312 bytes (39 MB, 37 MiB) copied, 5.45174 s, 7.1 MB/s ref file size: ref1(34603008), ref2(38797312) 2112+0 records in 2112+0 records out 34603008 bytes (35 MB, 33 MiB) copied, 7.72729 s, 4.5 MB/s Copied 376832 bytes before swapping layout...