== sanity test 184c: Concurrent write and layout swap ==== 05:57:13 (1788861433) 49+0 records in 49+0 records out 51380224 bytes (51 MB, 49 MiB) copied, 6.0484 s, 8.5 MB/s 37+0 records in 37+0 records out 38797312 bytes (39 MB, 37 MiB) copied, 4.72148 s, 8.2 MB/s ref file size: ref1(51380224), ref2(38797312) 3136+0 records in 3136+0 records out 51380224 bytes (51 MB, 49 MiB) copied, 14.6382 s, 3.5 MB/s Copied 425984 bytes before swapping layout...