== sanity test 184c: Concurrent write and layout swap ==== 16:37:03 (1767044223) 38+0 records in 38+0 records out 39845888 bytes (40 MB, 38 MiB) copied, 1.98985 s, 20.0 MB/s 26+0 records in 26+0 records out 27262976 bytes (27 MB, 26 MiB) copied, 1.45074 s, 18.8 MB/s ref file size: ref1(39845888), ref2(27262976) 2432+0 records in 2432+0 records out 39845888 bytes (40 MB, 38 MiB) copied, 3.64109 s, 10.9 MB/s Copied 1081344 bytes before swapping layout...