== sanity test 184c: Concurrent write and layout swap ==== 20:12:34 (1790122354) 24+0 records in 24+0 records out 25165824 bytes (25 MB, 24 MiB) copied, 3.35028 s, 7.5 MB/s 45+0 records in 45+0 records out 47185920 bytes (47 MB, 45 MiB) copied, 6.9249 s, 6.8 MB/s ref file size: ref1(25165824), ref2(47185920) 1536+0 records in 1536+0 records out 25165824 bytes (25 MB, 24 MiB) copied, 7.58913 s, 3.3 MB/s Copied 393216 bytes before swapping layout...