== sanity test 184c: Concurrent write and layout swap ==== 07:39:11 (1787485151) 24+0 records in 24+0 records out 25165824 bytes (25 MB, 24 MiB) copied, 1.51338 s, 16.6 MB/s 23+0 records in 23+0 records out 24117248 bytes (24 MB, 23 MiB) copied, 1.51316 s, 15.9 MB/s ref file size: ref1(25165824), ref2(24117248) 1536+0 records in 1536+0 records out 25165824 bytes (25 MB, 24 MiB) copied, 3.03046 s, 8.3 MB/s Copied 1130496 bytes before swapping layout...