== sanity test 248c: verify whole file read behavior ===== 21:28:07 (1746149287)
llite.lustre-ffff88012eab7800.read_ahead_stats=c
striped dir -i0 -c2 -H fnv_1a_64 /mnt/lustre/d248c.sanity
llite.lustre-ffff88012eab7800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 24.6 seconds
llite.lustre-ffff88012eab7800.read_ahead_stats=
snapshot_time             1746149290.603610920 secs.nsecs
start_time                1746149287.594999077 secs.nsecs
elapsed_time              3.008611843 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-ffff88012eab7800.read_ahead_stats=clear
llite.lustre-ffff88012eab7800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 24.8 seconds
llite.lustre-ffff88012eab7800.read_ahead_stats=
snapshot_time             1746149293.889588459 secs.nsecs
start_time                1746149290.610552651 secs.nsecs
elapsed_time              3.279035808 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-ffff88012eab7800.max_read_ahead_whole_mb=4