== sanity test 184c: Concurrent write and layout swap ==== 21:04:26 (1743210266) 56+0 records in 56+0 records out 58720256 bytes (59 MB) copied, 1.95342 s, 30.1 MB/s 23+0 records in 23+0 records out 24117248 bytes (24 MB) copied, 0.758359 s, 31.8 MB/s ref file size: ref1(58720256), ref2(24117248) 3584+0 records in 3584+0 records out 58720256 bytes (59 MB) copied, 3.39273 s, 17.3 MB/s Copied 1884160 bytes before swapping layout...