== sanity test 248c: verify whole file read behavior ===== 03:50:07 (1787385007)
llite.lustre-ffff970372649800.read_ahead_stats=c
striped dir -i0 -c2 -H crush  /mnt/lustre/d248c.sanity
llite.lustre-ffff970372649800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 6.27253 seconds
llite.lustre-ffff970372649800.read_ahead_stats=
snapshot_time                       1787385015.973751904 secs.nsecs
start_time                          1787385009.247193375 secs.nsecs
elapsed_time                        6.726558529 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-ffff970372649800.read_ahead_stats=clear
llite.lustre-ffff970372649800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 6.46128 seconds
llite.lustre-ffff970372649800.read_ahead_stats=
snapshot_time                       1787385023.977158314 secs.nsecs
start_time                          1787385015.982333233 secs.nsecs
elapsed_time                        7.994825081 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-ffff970372649800.max_read_ahead_whole_mb=4