== sanity test 184c: Concurrent write and layout swap ==== 20:41:33 (1745628093) 23+0 records in 23+0 records out 24117248 bytes (24 MB) copied, 0.733063 s, 32.9 MB/s 57+0 records in 57+0 records out 59768832 bytes (60 MB) copied, 1.68243 s, 35.5 MB/s ref file size: ref1(24117248), ref2(59768832) 1472+0 records in 1472+0 records out 24117248 bytes (24 MB) copied, 1.90444 s, 12.7 MB/s Copied 1949696 bytes before swapping layout...