== sanity test 184c: Concurrent write and layout swap ==== 04:17:45 (1747815465) 35+0 records in 35+0 records out 36700160 bytes (37 MB) copied, 1.1245 s, 32.6 MB/s 42+0 records in 42+0 records out 44040192 bytes (44 MB) copied, 1.36462 s, 32.3 MB/s ref file size: ref1(36700160), ref2(44040192) 2240+0 records in 2240+0 records out 36700160 bytes (37 MB) copied, 2.37193 s, 15.5 MB/s Copied 1589248 bytes before swapping layout...