== sanity test 184c: Concurrent write and layout swap ==== 23:28:46 (1770697726) 49+0 records in 49+0 records out 51380224 bytes (51 MB, 49 MiB) copied, 2.52831 s, 20.3 MB/s 25+0 records in 25+0 records out 26214400 bytes (26 MB, 25 MiB) copied, 1.23739 s, 21.2 MB/s ref file size: ref1(51380224), ref2(26214400) 3136+0 records in 3136+0 records out 51380224 bytes (51 MB, 49 MiB) copied, 4.35194 s, 11.8 MB/s Copied 1327104 bytes before swapping layout...