== sanity test 184c: Concurrent write and layout swap ==== 02:02:46 (1789365766) 65+0 records in 65+0 records out 68157440 bytes (68 MB, 65 MiB) copied, 3.74361 s, 18.2 MB/s 44+0 records in 44+0 records out 46137344 bytes (46 MB, 44 MiB) copied, 2.59474 s, 17.8 MB/s ref file size: ref1(68157440), ref2(46137344) 4160+0 records in 4160+0 records out 68157440 bytes (68 MB, 65 MiB) copied, 6.36357 s, 10.7 MB/s Copied 966656 bytes before swapping layout...