== sanity test 184c: Concurrent write and layout swap ==== 18:46:21 (1784069181) 46+0 records in 46+0 records out 48234496 bytes (48 MB, 46 MiB) copied, 6.65303 s, 7.3 MB/s 24+0 records in 24+0 records out 25165824 bytes (25 MB, 24 MiB) copied, 3.84655 s, 6.5 MB/s ref file size: ref1(48234496), ref2(25165824) 2944+0 records in 2944+0 records out 48234496 bytes (48 MB, 46 MiB) copied, 15.8141 s, 3.1 MB/s Copied 344064 bytes before swapping layout...