== sanity test 184c: Concurrent write and layout swap ==== 15:22:26 (1713295346) 54+0 records in 54+0 records out 56623104 bytes (57 MB) copied, 1.8107 s, 31.3 MB/s 38+0 records in 38+0 records out 39845888 bytes (40 MB) copied, 1.26959 s, 31.4 MB/s ref file size: ref1(56623104), ref2(39845888) 3456+0 records in 3456+0 records out 56623104 bytes (57 MB) copied, 3.78346 s, 15.0 MB/s Copied 1949696 bytes before swapping layout...