== sanity test 184c: Concurrent write and layout swap ==== 16:49:23 (1767736163) 27+0 records in 27+0 records out 28311552 bytes (28 MB, 27 MiB) copied, 1.95811 s, 14.5 MB/s 25+0 records in 25+0 records out 26214400 bytes (26 MB, 25 MiB) copied, 1.79541 s, 14.6 MB/s ref file size: ref1(28311552), ref2(26214400) 1728+0 records in 1728+0 records out 28311552 bytes (28 MB, 27 MiB) copied, 3.7064 s, 7.6 MB/s Copied 1114112 bytes before swapping layout...