== sanity test 248c: verify whole file read behavior ===== 05:59:54 (1768129194)
llite.lustre-ffff9bae08b61000.read_ahead_stats=c
striped dir -i0 -c2 -H crush /mnt/lustre/d248c.sanity
llite.lustre-ffff9bae08b61000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 3.61297 seconds
llite.lustre-ffff9bae08b61000.read_ahead_stats=
snapshot_time             1768129199.202934505 secs.nsecs
start_time                1768129195.416098449 secs.nsecs
elapsed_time              3.786836056 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-ffff9bae08b61000.read_ahead_stats=clear
llite.lustre-ffff9bae08b61000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 3.38948 seconds
llite.lustre-ffff9bae08b61000.read_ahead_stats=
snapshot_time             1768129203.188219425 secs.nsecs
start_time                1768129199.209691163 secs.nsecs
elapsed_time              3.978528262 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-ffff9bae08b61000.max_read_ahead_whole_mb=4