== sanity test 184c: Concurrent write and layout swap ==== 13:47:09 (1744134429) 65+0 records in 65+0 records out 68157440 bytes (68 MB) copied, 1.76053 s, 38.7 MB/s 24+0 records in 24+0 records out 25165824 bytes (25 MB) copied, 0.650085 s, 38.7 MB/s ref file size: ref1(68157440), ref2(25165824) 4160+0 records in 4160+0 records out 68157440 bytes (68 MB) copied, 3.61866 s, 18.8 MB/s Copied 2195456 bytes before swapping layout...