== sanity test 248c: verify whole file read behavior ===== 03:30:48 (1786951848)
llite.lustre-ffff8c8684f01800.read_ahead_stats=c
striped dir -i0 -c2 -H crush  /mnt/lustre/d248c.sanity
llite.lustre-ffff8c8684f01800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 8.66014 seconds
llite.lustre-ffff8c8684f01800.read_ahead_stats=
snapshot_time                       1786951861.098176940 secs.nsecs
start_time                          1786951851.298910621 secs.nsecs
elapsed_time                        9.799266319 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-ffff8c8684f01800.read_ahead_stats=clear
llite.lustre-ffff8c8684f01800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 8.26313 seconds
llite.lustre-ffff8c8684f01800.read_ahead_stats=
snapshot_time                       1786951872.794332893 secs.nsecs
start_time                          1786951861.115827852 secs.nsecs
elapsed_time                        11.678505041 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-ffff8c8684f01800.max_read_ahead_whole_mb=4