== sanity test 248c: verify whole file read behavior ===== 02:56:47 (1785394607)
llite.lustre-ffff917110494000.read_ahead_stats=c
striped dir -i0 -c2 -H all_char  /mnt/lustre/d248c.sanity
llite.lustre-ffff917110494000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 8.50513 seconds
llite.lustre-ffff917110494000.read_ahead_stats=
snapshot_time                       1785394618.952055341 secs.nsecs
start_time                          1785394609.603841874 secs.nsecs
elapsed_time                        9.348213467 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-ffff917110494000.read_ahead_stats=clear
llite.lustre-ffff917110494000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 8.14479 seconds
llite.lustre-ffff917110494000.read_ahead_stats=
snapshot_time                       1785394629.545839275 secs.nsecs
start_time                          1785394618.974753092 secs.nsecs
elapsed_time                        10.571086183 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-ffff917110494000.max_read_ahead_whole_mb=4