== sanity test 184c: Concurrent write and layout swap ==== 08:48:14 (1740491294) 65+0 records in 65+0 records out 68157440 bytes (68 MB) copied, 2.03418 s, 33.5 MB/s 24+0 records in 24+0 records out 25165824 bytes (25 MB) copied, 0.77977 s, 32.3 MB/s ref file size: ref1(68157440), ref2(25165824) 4160+0 records in 4160+0 records out 68157440 bytes (68 MB) copied, 3.93253 s, 17.3 MB/s Copied 1900544 bytes before swapping layout...