== sanity test 184c: Concurrent write and layout swap ==== 09:45:09 (1747403109) 26+0 records in 26+0 records out 27262976 bytes (27 MB) copied, 0.338425 s, 80.6 MB/s 55+0 records in 55+0 records out 57671680 bytes (58 MB) copied, 0.682729 s, 84.5 MB/s ref file size: ref1(27262976), ref2(57671680) 1664+0 records in 1664+0 records out 27262976 bytes (27 MB) copied, 0.396211 s, 68.8 MB/s Copied 11190272 bytes before swapping layout...