== sanity test 184c: Concurrent write and layout swap ==== 03:16:38 (1780989398) 25+0 records in 25+0 records out 26214400 bytes (26 MB, 25 MiB) copied, 1.27575 s, 20.5 MB/s 21+0 records in 21+0 records out 22020096 bytes (22 MB, 21 MiB) copied, 0.933731 s, 23.6 MB/s ref file size: ref1(26214400), ref2(22020096) 1600+0 records in 1600+0 records out 26214400 bytes (26 MB, 25 MiB) copied, 1.42232 s, 18.4 MB/s Copied 3686400 bytes before swapping layout...