== sanity test 184c: Concurrent write and layout swap ==== 14:27:42 (1790792862) 33+0 records in 33+0 records out 34603008 bytes (35 MB, 33 MiB) copied, 4.72531 s, 7.3 MB/s 42+0 records in 42+0 records out 44040192 bytes (44 MB, 42 MiB) copied, 6.4062 s, 6.9 MB/s ref file size: ref1(34603008), ref2(44040192) 2112+0 records in 2112+0 records out 34603008 bytes (35 MB, 33 MiB) copied, 9.76468 s, 3.5 MB/s Copied 425984 bytes before swapping layout...