== sanity test 248c: verify whole file read behavior ===== 04:24:47 (1780993487)
llite.lustre-ffff947f02d41000.read_ahead_stats=c
striped dir -i0 -c2 -H all_char  /mnt/lustre/d248c.sanity
llite.lustre-ffff947f02d41000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 8.74352 seconds
llite.lustre-ffff947f02d41000.read_ahead_stats=
snapshot_time             1780993500.810368134 secs.nsecs
start_time                1780993490.889977610 secs.nsecs
elapsed_time              9.920390524 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-ffff947f02d41000.read_ahead_stats=clear
llite.lustre-ffff947f02d41000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 8.28635 seconds
llite.lustre-ffff947f02d41000.read_ahead_stats=
snapshot_time             1780993511.334740507 secs.nsecs
start_time                1780993500.841641624 secs.nsecs
elapsed_time              10.493098883 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-ffff947f02d41000.max_read_ahead_whole_mb=4