== sanity test 184c: Concurrent write and layout swap ==== 14:46:18 (1782240378) 49+0 records in 49+0 records out 51380224 bytes (51 MB, 49 MiB) copied, 7.02541 s, 7.3 MB/s 57+0 records in 57+0 records out 59768832 bytes (60 MB, 57 MiB) copied, 7.82714 s, 7.6 MB/s ref file size: ref1(51380224), ref2(59768832) 3136+0 records in 3136+0 records out 51380224 bytes (51 MB, 49 MiB) copied, 11.9028 s, 4.3 MB/s Copied 557056 bytes before swapping layout...