== sanity test 399b: fake read should not be slower than normal read ========================================================== 01:23:22 (1786425802) debug=0 1000+0 records in 1000+0 records out 1048576000 bytes (1.0 GB, 1000 MiB) copied, 19.9438 s, 52.6 MB/s fail_loc=0x238 1000+0 records in 1000+0 records out 1048576000 bytes (1.0 GB, 1000 MiB) copied, 1.3554 s, 774 MB/s fail_loc=0 fake read 1.459293615 vs. normal read 19.998026135 in seconds