== sanity test 184c: Concurrent write and layout swap ==== 19:27:57 (1746142077) 59+0 records in 59+0 records out 61865984 bytes (62 MB) copied, 2.64636 s, 23.4 MB/s 52+0 records in 52+0 records out 54525952 bytes (55 MB) copied, 2.24972 s, 24.2 MB/s ref file size: ref1(61865984), ref2(54525952) 3776+0 records in 3776+0 records out 61865984 bytes (62 MB) copied, 6.59488 s, 9.4 MB/s Copied 1114112 bytes before swapping layout...