== sanity test 184c: Concurrent write and layout swap ==== 18:08:22 (1790892502) 65+0 records in 65+0 records out 68157440 bytes (68 MB, 65 MiB) copied, 9.15529 s, 7.4 MB/s 45+0 records in 45+0 records out 47185920 bytes (47 MB, 45 MiB) copied, 6.57395 s, 7.2 MB/s ref file size: ref1(68157440), ref2(47185920) 4160+0 records in 4160+0 records out 68157440 bytes (68 MB, 65 MiB) copied, 18.187 s, 3.7 MB/s Copied 540672 bytes before swapping layout...