== sanity test 184c: Concurrent write and layout swap ==== 19:18:39 (1748992719) 25+0 records in 25+0 records out 26214400 bytes (26 MB) copied, 0.391488 s, 67.0 MB/s 47+0 records in 47+0 records out 49283072 bytes (49 MB) copied, 0.66299 s, 74.3 MB/s ref file size: ref1(26214400), ref2(49283072) 1600+0 records in 1600+0 records out 26214400 bytes (26 MB) copied, 0.384471 s, 68.2 MB/s Copied 8306688 bytes before swapping layout...