== sanity test 248c: verify whole file read behavior ===== 18:30:09 (1780525809)
llite.lustre-ffff9fd6c9157800.read_ahead_stats=c
striped dir -i0 -c2 -H all_char  /mnt/lustre/d248c.sanity
llite.lustre-ffff9fd6c9157800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 3.20834 seconds
llite.lustre-ffff9fd6c9157800.read_ahead_stats=
snapshot_time             1780525813.437472127 secs.nsecs
start_time                1780525810.050089912 secs.nsecs
elapsed_time              3.387382215 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-ffff9fd6c9157800.read_ahead_stats=clear
llite.lustre-ffff9fd6c9157800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 2.70302 seconds
llite.lustre-ffff9fd6c9157800.read_ahead_stats=
snapshot_time             1780525816.660131954 secs.nsecs
start_time                1780525813.443899391 secs.nsecs
elapsed_time              3.216232563 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-ffff9fd6c9157800.max_read_ahead_whole_mb=4