== sanity test 184c: Concurrent write and layout swap ==== 16:44:52 (1771451092) 32+0 records in 32+0 records out 33554432 bytes (34 MB, 32 MiB) copied, 1.88026 s, 17.8 MB/s 33+0 records in 33+0 records out 34603008 bytes (35 MB, 33 MiB) copied, 2.58303 s, 13.4 MB/s ref file size: ref1(33554432), ref2(34603008) 2048+0 records in 2048+0 records out 33554432 bytes (34 MB, 32 MiB) copied, 3.96211 s, 8.5 MB/s Copied 983040 bytes before swapping layout...