== sanity test 184c: Concurrent write and layout swap ==== 18:09:56 (1710108596) 38+0 records in 38+0 records out 39845888 bytes (40 MB) copied, 1.14453 s, 34.8 MB/s 52+0 records in 52+0 records out 54525952 bytes (55 MB) copied, 1.6173 s, 33.7 MB/s ref file size: ref1(39845888), ref2(54525952) 2432+0 records in 2432+0 records out 39845888 bytes (40 MB) copied, 2.60229 s, 15.3 MB/s Copied 1998848 bytes before swapping layout...