== sanity test 184c: Concurrent write and layout swap ==== 21:21:49 (1790990509) 65+0 records in 65+0 records out 68157440 bytes (68 MB, 65 MiB) copied, 5.16498 s, 13.2 MB/s 45+0 records in 45+0 records out 47185920 bytes (47 MB, 45 MiB) copied, 3.15999 s, 14.9 MB/s ref file size: ref1(68157440), ref2(47185920) 4160+0 records in 4160+0 records out 68157440 bytes (68 MB, 65 MiB) copied, 9.26664 s, 7.4 MB/s Copied 1163264 bytes before swapping layout...