== sanity test 248c: verify whole file read behavior ===== 18:02:22 (1789077742)
llite.lustre-ffff9b0f91c4e800.read_ahead_stats=c
striped dir -i0 -c2 -H all_char  /mnt/lustre/d248c.sanity
llite.lustre-ffff9b0f91c4e800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 5.16314 seconds
llite.lustre-ffff9b0f91c4e800.read_ahead_stats=
snapshot_time                       1789077749.753432444 secs.nsecs
start_time                          1789077744.009951219 secs.nsecs
elapsed_time                        5.743481225 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-ffff9b0f91c4e800.read_ahead_stats=clear
llite.lustre-ffff9b0f91c4e800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 7.88509 seconds
llite.lustre-ffff9b0f91c4e800.read_ahead_stats=
snapshot_time                       1789077760.353773154 secs.nsecs
start_time                          1789077749.767433509 secs.nsecs
elapsed_time                        10.586339645 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-ffff9b0f91c4e800.max_read_ahead_whole_mb=4