== sanity test 248c: verify whole file read behavior ===== 23:25:54 (1786764354)
llite.lustre-ffff9d89911f8000.read_ahead_stats=c
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d248c.sanity
llite.lustre-ffff9d89911f8000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 6.78689 seconds
llite.lustre-ffff9d89911f8000.read_ahead_stats=
snapshot_time                       1786764364.021509813 secs.nsecs
start_time                          1786764356.558103484 secs.nsecs
elapsed_time                        7.463406329 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-ffff9d89911f8000.read_ahead_stats=clear
llite.lustre-ffff9d89911f8000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 7.28712 seconds
llite.lustre-ffff9d89911f8000.read_ahead_stats=
snapshot_time                       1786764373.383483525 secs.nsecs
start_time                          1786764364.044233196 secs.nsecs
elapsed_time                        9.339250329 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-ffff9d89911f8000.max_read_ahead_whole_mb=4