== sanity test 184c: Concurrent write and layout swap ==== 16:03:10 (1772917390) 56+0 records in 56+0 records out 58720256 bytes (59 MB, 56 MiB) copied, 3.95809 s, 14.8 MB/s 65+0 records in 65+0 records out 68157440 bytes (68 MB, 65 MiB) copied, 5.01405 s, 13.6 MB/s ref file size: ref1(58720256), ref2(68157440) 3584+0 records in 3584+0 records out 58720256 bytes (59 MB, 56 MiB) copied, 6.70123 s, 8.8 MB/s Copied 1196032 bytes before swapping layout...