== sanity test 184c: Concurrent write and layout swap ==== 14:51:36 (1790794296) 38+0 records in 38+0 records out 39845888 bytes (40 MB, 38 MiB) copied, 10.9887 s, 3.6 MB/s 25+0 records in 25+0 records out 26214400 bytes (26 MB, 25 MiB) copied, 3.94762 s, 6.6 MB/s ref file size: ref1(39845888), ref2(26214400) 2432+0 records in 2432+0 records out 39845888 bytes (40 MB, 38 MiB) copied, 14.0984 s, 2.8 MB/s Copied 491520 bytes before swapping layout...