== sanity test 184c: Concurrent write and layout swap ==== 13:43:19 (1790790199) 35+0 records in 35+0 records out 36700160 bytes (37 MB, 35 MiB) copied, 5.59568 s, 6.6 MB/s 28+0 records in 28+0 records out 29360128 bytes (29 MB, 28 MiB) copied, 5.06329 s, 5.8 MB/s ref file size: ref1(36700160), ref2(29360128) 2240+0 records in 2240+0 records out 36700160 bytes (37 MB, 35 MiB) copied, 15.6299 s, 2.3 MB/s Copied 425984 bytes before swapping layout...