== sanity test 184c: Concurrent write and layout swap ==== 14:41:38 (1782240098) 33+0 records in 33+0 records out 34603008 bytes (35 MB, 33 MiB) copied, 4.96288 s, 7.0 MB/s 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 5.97182 s, 7.0 MB/s ref file size: ref1(34603008), ref2(41943040) 2112+0 records in 2112+0 records out 34603008 bytes (35 MB, 33 MiB) copied, 11.5713 s, 3.0 MB/s Copied 376832 bytes before swapping layout...