== sanity test 184c: Concurrent write and layout swap ==== 18:36:09 (1746138969) 35+0 records in 35+0 records out 36700160 bytes (37 MB) copied, 2.1702 s, 16.9 MB/s 59+0 records in 59+0 records out 61865984 bytes (62 MB) copied, 4.08639 s, 15.1 MB/s ref file size: ref1(36700160), ref2(61865984) 2240+0 records in 2240+0 records out 36700160 bytes (37 MB) copied, 5.70975 s, 6.4 MB/s Copied 1032192 bytes before swapping layout...