== sanity test 248c: verify whole file read behavior ===== 19:44:51 (1753746291)
llite.lustre-ffff963e83e6a800.read_ahead_stats=c
striped dir -i0 -c2 -H all_char /mnt/lustre/d248c.sanity
llite.lustre-ffff963e83e6a800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 5.15518 seconds
llite.lustre-ffff963e83e6a800.read_ahead_stats=
snapshot_time             1753746298.375974639 secs.nsecs
start_time                1753746292.828175863 secs.nsecs
elapsed_time              5.547798776 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-ffff963e83e6a800.read_ahead_stats=clear
llite.lustre-ffff963e83e6a800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 4.84488 seconds
llite.lustre-ffff963e83e6a800.read_ahead_stats=
snapshot_time             1753746304.116772990 secs.nsecs
start_time                1753746298.384740908 secs.nsecs
elapsed_time              5.732032082 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-ffff963e83e6a800.max_read_ahead_whole_mb=4