== sanity test 248c: verify whole file read behavior ===== 15:46:40 (1786823200)
llite.lustre-ffff8efb731f5800.read_ahead_stats=c
striped dir -i0 -c2 -H crush2  /mnt/lustre/d248c.sanity
llite.lustre-ffff8efb731f5800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 6.2876 seconds
llite.lustre-ffff8efb731f5800.read_ahead_stats=
snapshot_time                       1786823209.322675428 secs.nsecs
start_time                          1786823202.460457889 secs.nsecs
elapsed_time                        6.862217539 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-ffff8efb731f5800.read_ahead_stats=clear
llite.lustre-ffff8efb731f5800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 6.22648 seconds
llite.lustre-ffff8efb731f5800.read_ahead_stats=
snapshot_time                       1786823217.687727607 secs.nsecs
start_time                          1786823209.350717049 secs.nsecs
elapsed_time                        8.337010558 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-ffff8efb731f5800.max_read_ahead_whole_mb=4