== sanity test 184c: Concurrent write and layout swap ==== 12:12:34 (1713370354) 23+0 records in 23+0 records out 24117248 bytes (24 MB) copied, 0.789921 s, 30.5 MB/s 36+0 records in 36+0 records out 37748736 bytes (38 MB) copied, 1.16279 s, 32.5 MB/s ref file size: ref1(24117248), ref2(37748736) 1472+0 records in 1472+0 records out 24117248 bytes (24 MB) copied, 1.66863 s, 14.5 MB/s Copied 2211840 bytes before swapping layout...