== sanity test 184c: Concurrent write and layout swap ==== 16:22:15 (1771449735) 33+0 records in 33+0 records out 34603008 bytes (35 MB, 33 MiB) copied, 2.35444 s, 14.7 MB/s 64+0 records in 64+0 records out 67108864 bytes (67 MB, 64 MiB) copied, 4.35069 s, 15.4 MB/s ref file size: ref1(34603008), ref2(67108864) 2112+0 records in 2112+0 records out 34603008 bytes (35 MB, 33 MiB) copied, 3.85434 s, 9.0 MB/s Copied 1228800 bytes before swapping layout...