== sanity test 184c: Concurrent write and layout swap ==== 12:14:53 (1737134093) 25+0 records in 25+0 records out 26214400 bytes (26 MB) copied, 0.397993 s, 65.9 MB/s 37+0 records in 37+0 records out 38797312 bytes (39 MB) copied, 0.588606 s, 65.9 MB/s ref file size: ref1(26214400), ref2(38797312) 1600+0 records in 1600+0 records out 26214400 bytes (26 MB) copied, 0.428708 s, 61.1 MB/s Copied 8601600 bytes before swapping layout...