== sanity test 184c: Concurrent write and layout swap ==== 15:49:10 (1785095350) 59+0 records in 59+0 records out 61865984 bytes (62 MB, 59 MiB) copied, 3.79869 s, 16.3 MB/s 38+0 records in 38+0 records out 39845888 bytes (40 MB, 38 MiB) copied, 2.77301 s, 14.4 MB/s ref file size: ref1(61865984), ref2(39845888) 3776+0 records in 3776+0 records out 61865984 bytes (62 MB, 59 MiB) copied, 6.86161 s, 9.0 MB/s Copied 1212416 bytes before swapping layout...