== sanity test 248c: verify whole file read behavior ===== 05:40:23 (1780998023)
llite.lustre-ffff940542f69800.read_ahead_stats=c
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d248c.sanity
llite.lustre-ffff940542f69800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 7.06472 seconds
llite.lustre-ffff940542f69800.read_ahead_stats=
snapshot_time                       1780998032.817622402 secs.nsecs
start_time                          1780998025.138864304 secs.nsecs
elapsed_time                        7.678758098 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-ffff940542f69800.read_ahead_stats=clear
llite.lustre-ffff940542f69800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 7.04356 seconds
llite.lustre-ffff940542f69800.read_ahead_stats=
snapshot_time                       1780998041.931164234 secs.nsecs
start_time                          1780998032.839569090 secs.nsecs
elapsed_time                        9.091595144 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-ffff940542f69800.max_read_ahead_whole_mb=4