== sanity test 184c: Concurrent write and layout swap ==== 12:44:59 (1722789899) 68+0 records in 68+0 records out 71303168 bytes (71 MB) copied, 2.34449 s, 30.4 MB/s 65+0 records in 65+0 records out 68157440 bytes (68 MB) copied, 2.17556 s, 31.3 MB/s ref file size: ref1(71303168), ref2(68157440) 4352+0 records in 4352+0 records out 71303168 bytes (71 MB) copied, 4.4538 s, 16.0 MB/s Copied 1376256 bytes before swapping layout...