== sanity test 248c: verify whole file read behavior ===== 14:47:17 (1777574837)
llite.lustre-ffff9ba182bf6000.read_ahead_stats=c
striped dir -i0 -c2 -H crush2  /mnt/lustre/d248c.sanity
llite.lustre-ffff9ba182bf6000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 3.52474 seconds
llite.lustre-ffff9ba182bf6000.read_ahead_stats=
snapshot_time             1777574842.145358325 secs.nsecs
start_time                1777574838.158416844 secs.nsecs
elapsed_time              3.986941481 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-ffff9ba182bf6000.read_ahead_stats=clear
llite.lustre-ffff9ba182bf6000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 3.85525 seconds
llite.lustre-ffff9ba182bf6000.read_ahead_stats=
snapshot_time             1777574846.932090996 secs.nsecs
start_time                1777574842.160573192 secs.nsecs
elapsed_time              4.771517804 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-ffff9ba182bf6000.max_read_ahead_whole_mb=4