== sanity test 248c: verify whole file read behavior ===== 21:26:53 (1775870813)
llite.lustre-ffff9d67c2f21000.read_ahead_stats=c
striped dir -i0 -c2 -H all_char  /mnt/lustre/d248c.sanity
llite.lustre-ffff9d67c2f21000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 6.90194 seconds
llite.lustre-ffff9d67c2f21000.read_ahead_stats=
snapshot_time             1775870823.690561981 secs.nsecs
start_time                1775870815.952941863 secs.nsecs
elapsed_time              7.737620118 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-ffff9d67c2f21000.read_ahead_stats=clear
llite.lustre-ffff9d67c2f21000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 7.47437 seconds
llite.lustre-ffff9d67c2f21000.read_ahead_stats=
snapshot_time             1775870832.858033387 secs.nsecs
start_time                1775870823.710225149 secs.nsecs
elapsed_time              9.147808238 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-ffff9d67c2f21000.max_read_ahead_whole_mb=4