== sanity test 184c: Concurrent write and layout swap ==== 16:13:31 (1781295211) 33+0 records in 33+0 records out 34603008 bytes (35 MB, 33 MiB) copied, 5.31156 s, 6.5 MB/s 41+0 records in 41+0 records out 42991616 bytes (43 MB, 41 MiB) copied, 7.46475 s, 5.8 MB/s ref file size: ref1(34603008), ref2(42991616) 2112+0 records in 2112+0 records out 34603008 bytes (35 MB, 33 MiB) copied, 11.6275 s, 3.0 MB/s Copied 655360 bytes before swapping layout...