== sanity test 248c: verify whole file read behavior ===== 23:11:19 (1746155479)
llite.lustre-ffff8800b669d000.read_ahead_stats=c
striped dir -i0 -c2 -H fnv_1a_64 /mnt/lustre/d248c.sanity
llite.lustre-ffff8800b669d000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 19.7 seconds
llite.lustre-ffff8800b669d000.read_ahead_stats=
snapshot_time             1746155483.650964480 secs.nsecs
start_time                1746155479.938925418 secs.nsecs
elapsed_time              3.712039062 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-ffff8800b669d000.read_ahead_stats=clear
llite.lustre-ffff8800b669d000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 17.2 seconds
llite.lustre-ffff8800b669d000.read_ahead_stats=
snapshot_time             1746155488.235092663 secs.nsecs
start_time                1746155483.658977813 secs.nsecs
elapsed_time              4.576114850 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-ffff8800b669d000.max_read_ahead_whole_mb=4