== sanity test 184c: Concurrent write and layout swap ==== 09:43:26 (1781012606) 36+0 records in 36+0 records out 37748736 bytes (38 MB, 36 MiB) copied, 2.30111 s, 16.4 MB/s 32+0 records in 32+0 records out 33554432 bytes (34 MB, 32 MiB) copied, 2.14208 s, 15.7 MB/s ref file size: ref1(37748736), ref2(33554432) 2304+0 records in 2304+0 records out 37748736 bytes (38 MB, 36 MiB) copied, 5.0002 s, 7.5 MB/s Copied 1114112 bytes before swapping layout...