== sanity test 184c: Concurrent write and layout swap ==== 04:43:56 (1713084236) 67+0 records in 67+0 records out 70254592 bytes (70 MB) copied, 2.75265 s, 25.5 MB/s 38+0 records in 38+0 records out 39845888 bytes (40 MB) copied, 1.85349 s, 21.5 MB/s ref file size: ref1(70254592), ref2(39845888) 4288+0 records in 4288+0 records out 70254592 bytes (70 MB) copied, 5.69892 s, 12.3 MB/s Copied 1490944 bytes before swapping layout...