== sanity test 184c: Concurrent write and layout swap ==== 10:16:59 (1782742619) 55+0 records in 55+0 records out 57671680 bytes (58 MB, 55 MiB) copied, 3.16713 s, 18.2 MB/s 46+0 records in 46+0 records out 48234496 bytes (48 MB, 46 MiB) copied, 2.55257 s, 18.9 MB/s ref file size: ref1(57671680), ref2(48234496) 3520+0 records in 3520+0 records out 57671680 bytes (58 MB, 55 MiB) copied, 5.654 s, 10.2 MB/s Copied 1343488 bytes before swapping layout...