== sanity test 184c: Concurrent write and layout swap ==== 12:47:57 (1761324477) 55+0 records in 55+0 records out 57671680 bytes (58 MB, 55 MiB) copied, 1.0869 s, 53.1 MB/s 66+0 records in 66+0 records out 69206016 bytes (69 MB, 66 MiB) copied, 1.25961 s, 54.9 MB/s ref file size: ref1(57671680), ref2(69206016) 3520+0 records in 3520+0 records out 57671680 bytes (58 MB, 55 MiB) copied, 0.978948 s, 58.9 MB/s Copied 6504448 bytes before swapping layout...