== sanity test 184c: Concurrent write and layout swap ==== 06:30:11 (1788949811) 66+0 records in 66+0 records out 69206016 bytes (69 MB, 66 MiB) copied, 8.47629 s, 8.2 MB/s 59+0 records in 59+0 records out 61865984 bytes (62 MB, 59 MiB) copied, 6.99434 s, 8.8 MB/s ref file size: ref1(69206016), ref2(61865984) 4224+0 records in 4224+0 records out 69206016 bytes (69 MB, 66 MiB) copied, 16.9924 s, 4.1 MB/s Copied 475136 bytes before swapping layout...