== sanity test 248c: verify whole file read behavior ===== 13:48:13 (1780336093)
llite.lustre-ffff88ad54316000.read_ahead_stats=c
striped dir -i0 -c2 -H crush2  /mnt/lustre/d248c.sanity
llite.lustre-ffff88ad54316000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 5.35852 seconds
llite.lustre-ffff88ad54316000.read_ahead_stats=
snapshot_time             1780336101.940054926 secs.nsecs
start_time                1780336095.857539380 secs.nsecs
elapsed_time              6.082515546 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-ffff88ad54316000.read_ahead_stats=clear
llite.lustre-ffff88ad54316000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 7.53316 seconds
llite.lustre-ffff88ad54316000.read_ahead_stats=
snapshot_time             1780336111.488826436 secs.nsecs
start_time                1780336101.966083074 secs.nsecs
elapsed_time              9.522743362 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-ffff88ad54316000.max_read_ahead_whole_mb=4