== sanity test 184c: Concurrent write and layout swap ==== 22:03:54 (1713492234) 27+0 records in 27+0 records out 28311552 bytes (28 MB) copied, 0.910792 s, 31.1 MB/s 31+0 records in 31+0 records out 32505856 bytes (33 MB) copied, 1.21118 s, 26.8 MB/s ref file size: ref1(28311552), ref2(32505856) 1728+0 records in 1728+0 records out 28311552 bytes (28 MB) copied, 1.92114 s, 14.7 MB/s Copied 1982464 bytes before swapping layout...