== sanity test 248c: verify whole file read behavior ===== 11:07:55 (1780326475)
llite.lustre-ffff98614810b000.read_ahead_stats=c
striped dir -i0 -c2 -H crush2  /mnt/lustre/d248c.sanity
llite.lustre-ffff98614810b000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 2.62399 seconds
llite.lustre-ffff98614810b000.read_ahead_stats=
snapshot_time             1780326479.358732966 secs.nsecs
start_time                1780326476.402154355 secs.nsecs
elapsed_time              2.956578611 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-ffff98614810b000.read_ahead_stats=clear
llite.lustre-ffff98614810b000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 2.87228 seconds
llite.lustre-ffff98614810b000.read_ahead_stats=
snapshot_time             1780326482.925829844 secs.nsecs
start_time                1780326479.364579988 secs.nsecs
elapsed_time              3.561249856 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-ffff98614810b000.max_read_ahead_whole_mb=4