== sanity test 184c: Concurrent write and layout swap ==== 20:45:15 (1775177115) 59+0 records in 59+0 records out 61865984 bytes (62 MB, 59 MiB) copied, 3.87546 s, 16.0 MB/s 50+0 records in 50+0 records out 52428800 bytes (52 MB, 50 MiB) copied, 3.23285 s, 16.2 MB/s ref file size: ref1(61865984), ref2(52428800) 3776+0 records in 3776+0 records out 61865984 bytes (62 MB, 59 MiB) copied, 7.27274 s, 8.5 MB/s Copied 1179648 bytes before swapping layout...