== sanity test 184c: Concurrent write and layout swap ==== 09:20:27 (1789564827) 23+0 records in 23+0 records out 24117248 bytes (24 MB, 23 MiB) copied, 3.01985 s, 8.0 MB/s 23+0 records in 23+0 records out 24117248 bytes (24 MB, 23 MiB) copied, 3.01547 s, 8.0 MB/s ref file size: ref1(24117248), ref2(24117248) 1472+0 records in 1472+0 records out 24117248 bytes (24 MB, 23 MiB) copied, 5.98368 s, 4.0 MB/s Copied 573440 bytes before swapping layout...