== sanity test 248c: verify whole file read behavior ===== 11:52:47 (1790956367)
llite.lustre-ffff9d7903ef5800.read_ahead_stats=c
striped dir -i0 -c2 -H crush2  /mnt/lustre/d248c.sanity
llite.lustre-ffff9d7903ef5800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 3.92047 seconds
llite.lustre-ffff9d7903ef5800.read_ahead_stats=
snapshot_time                       1790956373.165795332 secs.nsecs
start_time                          1790956368.859856333 secs.nsecs
elapsed_time                        4.305938999 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-ffff9d7903ef5800.read_ahead_stats=clear
llite.lustre-ffff9d7903ef5800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 4.70405 seconds
llite.lustre-ffff9d7903ef5800.read_ahead_stats=
snapshot_time                       1790956378.840451112 secs.nsecs
start_time                          1790956373.173681534 secs.nsecs
elapsed_time                        5.666769578 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-ffff9d7903ef5800.max_read_ahead_whole_mb=4