== sanity test 248c: verify whole file read behavior ===== 09:32:28 (1790775148)
llite.lustre-ffff91d1598cc800.read_ahead_stats=c
striped dir -i0 -c2 -H crush  /mnt/lustre/d248c.sanity
llite.lustre-ffff91d1598cc800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 6.75141 seconds
llite.lustre-ffff91d1598cc800.read_ahead_stats=
snapshot_time                       1790775157.816537287 secs.nsecs
start_time                          1790775150.262904311 secs.nsecs
elapsed_time                        7.553632976 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-ffff91d1598cc800.read_ahead_stats=clear
llite.lustre-ffff91d1598cc800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 6.61388 seconds
llite.lustre-ffff91d1598cc800.read_ahead_stats=
snapshot_time                       1790775166.643265287 secs.nsecs
start_time                          1790775157.847862617 secs.nsecs
elapsed_time                        8.795402670 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-ffff91d1598cc800.max_read_ahead_whole_mb=4