== sanity test 184c: Concurrent write and layout swap ==== 22:33:44 (1746153224) 27+0 records in 27+0 records out 28311552 bytes (28 MB) copied, 1.60551 s, 17.6 MB/s 55+0 records in 55+0 records out 57671680 bytes (58 MB) copied, 2.60572 s, 22.1 MB/s ref file size: ref1(28311552), ref2(57671680) 1728+0 records in 1728+0 records out 28311552 bytes (28 MB) copied, 3.38065 s, 8.4 MB/s Copied 1245184 bytes before swapping layout...