== sanity test 248c: verify whole file read behavior ===== 22:38:08 (1788748688)
llite.lustre-ffff8a90c84d8000.read_ahead_stats=c
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d248c.sanity
llite.lustre-ffff8a90c84d8000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 7.93768 seconds
llite.lustre-ffff8a90c84d8000.read_ahead_stats=
snapshot_time                       1788748699.609982493 secs.nsecs
start_time                          1788748690.963010997 secs.nsecs
elapsed_time                        8.646971496 secs.nsecs
hits                                16382 samples [pages]
misses                              2 samples [pages]
zero_size_window                    1 samples [pages]
failed_to_fast_read                 3 samples [pages]
readahead_pages                     1 samples [pages] 16382 16382 16382
llite.lustre-ffff8a90c84d8000.read_ahead_stats=clear
llite.lustre-ffff8a90c84d8000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 7.93349 seconds
llite.lustre-ffff8a90c84d8000.read_ahead_stats=
snapshot_time                       1788748710.115512798 secs.nsecs
start_time                          1788748699.629590724 secs.nsecs
elapsed_time                        10.485922074 secs.nsecs
hits                                16382 samples [pages]
misses                              2 samples [pages]
zero_size_window                    1 samples [pages]
failed_to_fast_read                 3 samples [pages]
readahead_pages                     1 samples [pages] 16382 16382 16382
Test passed on attempt 0
llite.lustre-ffff8a90c84d8000.max_read_ahead_whole_mb=4