== sanity test 248c: verify whole file read behavior ===== 05:50:27 (1787824227)
llite.lustre-ffff8f5142dc9800.read_ahead_stats=c
striped dir -i0 -c2 -H crush  /mnt/lustre/d248c.sanity
llite.lustre-ffff8f5142dc9800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 6.28302 seconds
llite.lustre-ffff8f5142dc9800.read_ahead_stats=
snapshot_time                       1787824236.282719782 secs.nsecs
start_time                          1787824229.291097006 secs.nsecs
elapsed_time                        6.991622776 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-ffff8f5142dc9800.read_ahead_stats=clear
llite.lustre-ffff8f5142dc9800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 6.41086 seconds
llite.lustre-ffff8f5142dc9800.read_ahead_stats=
snapshot_time                       1787824244.848411600 secs.nsecs
start_time                          1787824236.306855512 secs.nsecs
elapsed_time                        8.541556088 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-ffff8f5142dc9800.max_read_ahead_whole_mb=4