== sanity test 248c: verify whole file read behavior ===== 12:59:48 (1772474388)
llite.lustre-ffff8a800335b800.read_ahead_stats=c
striped dir -i0 -c2 -H fnv_1a_64 /mnt/lustre/d248c.sanity
llite.lustre-ffff8a800335b800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 4.59991 seconds
llite.lustre-ffff8a800335b800.read_ahead_stats=
snapshot_time             1772474394.340651836 secs.nsecs
start_time                1772474389.349176108 secs.nsecs
elapsed_time              4.991475728 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-ffff8a800335b800.read_ahead_stats=clear
llite.lustre-ffff8a800335b800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 4.61576 seconds
llite.lustre-ffff8a800335b800.read_ahead_stats=
snapshot_time             1772474400.345075370 secs.nsecs
start_time                1772474394.355589288 secs.nsecs
elapsed_time              5.989486082 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-ffff8a800335b800.max_read_ahead_whole_mb=4