== sanity test 184c: Concurrent write and layout swap ==== 08:48:42 (1787402922) 35+0 records in 35+0 records out 36700160 bytes (37 MB, 35 MiB) copied, 5.31314 s, 6.9 MB/s 23+0 records in 23+0 records out 24117248 bytes (24 MB, 23 MiB) copied, 3.57245 s, 6.8 MB/s ref file size: ref1(36700160), ref2(24117248) 2240+0 records in 2240+0 records out 36700160 bytes (37 MB, 35 MiB) copied, 11.0431 s, 3.3 MB/s Copied 770048 bytes before swapping layout...