== sanity test 248c: verify whole file read behavior ===== 17:57:09 (1781215029)
llite.lustre-ffff8eef44d34800.read_ahead_stats=c
striped dir -i0 -c2 -H all_char  /mnt/lustre/d248c.sanity
llite.lustre-ffff8eef44d34800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 6.57962 seconds
llite.lustre-ffff8eef44d34800.read_ahead_stats=
snapshot_time             1781215038.510739431 secs.nsecs
start_time                1781215031.369374695 secs.nsecs
elapsed_time              7.141364736 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-ffff8eef44d34800.read_ahead_stats=clear
llite.lustre-ffff8eef44d34800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 7.70667 seconds
llite.lustre-ffff8eef44d34800.read_ahead_stats=
snapshot_time             1781215048.496843480 secs.nsecs
start_time                1781215038.532576954 secs.nsecs
elapsed_time              9.964266526 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-ffff8eef44d34800.max_read_ahead_whole_mb=4