== sanity test 184c: Concurrent write and layout swap ==== 12:35:15 (1766424915) 65+0 records in 65+0 records out 68157440 bytes (68 MB, 65 MiB) copied, 4.475 s, 15.2 MB/s 55+0 records in 55+0 records out 57671680 bytes (58 MB, 55 MiB) copied, 3.82796 s, 15.1 MB/s ref file size: ref1(68157440), ref2(57671680) 4160+0 records in 4160+0 records out 68157440 bytes (68 MB, 65 MiB) copied, 7.50328 s, 9.1 MB/s Copied 1540096 bytes before swapping layout...