== sanity test 184c: Concurrent write and layout swap ==== 06:07:15 (1782641235) 25+0 records in 25+0 records out 26214400 bytes (26 MB, 25 MiB) copied, 1.28701 s, 20.4 MB/s 38+0 records in 38+0 records out 39845888 bytes (40 MB, 38 MiB) copied, 1.9269 s, 20.7 MB/s ref file size: ref1(26214400), ref2(39845888) 1600+0 records in 1600+0 records out 26214400 bytes (26 MB, 25 MiB) copied, 2.42421 s, 10.8 MB/s Copied 1294336 bytes before swapping layout...