== sanity test 184c: Concurrent write and layout swap ==== 08:56:39 (1787403399) 66+0 records in 66+0 records out 69206016 bytes (69 MB, 66 MiB) copied, 10.6173 s, 6.5 MB/s 65+0 records in 65+0 records out 68157440 bytes (68 MB, 65 MiB) copied, 9.63082 s, 7.1 MB/s ref file size: ref1(69206016), ref2(68157440) 4224+0 records in 4224+0 records out 69206016 bytes (69 MB, 66 MiB) copied, 20.3391 s, 3.4 MB/s Copied 360448 bytes before swapping layout...