== sanity test 184c: Concurrent write and layout swap ==== 19:30:29 (1780097429) 32+0 records in 32+0 records out 33554432 bytes (34 MB, 32 MiB) copied, 1.85641 s, 18.1 MB/s 44+0 records in 44+0 records out 46137344 bytes (46 MB, 44 MiB) copied, 2.73278 s, 16.9 MB/s ref file size: ref1(33554432), ref2(46137344) 2048+0 records in 2048+0 records out 33554432 bytes (34 MB, 32 MiB) copied, 3.1243 s, 10.7 MB/s Copied 1294336 bytes before swapping layout...