== sanity test 184c: Concurrent write and layout swap ==== 18:56:22 (1717023382) 32+0 records in 32+0 records out 33554432 bytes (34 MB) copied, 0.545579 s, 61.5 MB/s 42+0 records in 42+0 records out 44040192 bytes (44 MB) copied, 0.713409 s, 61.7 MB/s ref file size: ref1(33554432), ref2(44040192) 2048+0 records in 2048+0 records out 33554432 bytes (34 MB) copied, 0.562899 s, 59.6 MB/s Copied 7569408 bytes before swapping layout...