== sanity test 184c: Concurrent write and layout swap ==== 22:24:33 (1789093473) 29+0 records in 29+0 records out 30408704 bytes (30 MB, 29 MiB) copied, 4.10589 s, 7.4 MB/s 44+0 records in 44+0 records out 46137344 bytes (46 MB, 44 MiB) copied, 5.26007 s, 8.8 MB/s ref file size: ref1(30408704), ref2(46137344) 1856+0 records in 1856+0 records out 30408704 bytes (30 MB, 29 MiB) copied, 7.53306 s, 4.0 MB/s Copied 557056 bytes before swapping layout...