== sanity test 248c: verify whole file read behavior ===== 22:07:17 (1763348837)
llite.lustre-ffff9e44a9cce000.read_ahead_stats=c
striped dir -i0 -c2 -H all_char /mnt/lustre/d248c.sanity
llite.lustre-ffff9e44a9cce000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 7.33814 seconds
llite.lustre-ffff9e44a9cce000.read_ahead_stats=
snapshot_time             1763348847.442267033 secs.nsecs
start_time                1763348839.528499271 secs.nsecs
elapsed_time              7.913767762 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-ffff9e44a9cce000.read_ahead_stats=clear
llite.lustre-ffff9e44a9cce000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 7.31197 seconds
llite.lustre-ffff9e44a9cce000.read_ahead_stats=
snapshot_time             1763348856.496188924 secs.nsecs
start_time                1763348847.470897860 secs.nsecs
elapsed_time              9.025291064 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-ffff9e44a9cce000.max_read_ahead_whole_mb=4