== sanity test 248c: verify whole file read behavior ===== 09:57:22 (1774879042)
llite.lustre-ffff8907edbff800.read_ahead_stats=c
striped dir -i0 -c2 -H fnv_1a_64 /mnt/lustre/d248c.sanity
llite.lustre-ffff8907edbff800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 7.98019 seconds
llite.lustre-ffff8907edbff800.read_ahead_stats=
snapshot_time             1774879053.650498758 secs.nsecs
start_time                1774879045.008067816 secs.nsecs
elapsed_time              8.642430942 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-ffff8907edbff800.read_ahead_stats=clear
llite.lustre-ffff8907edbff800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 6.14677 seconds
llite.lustre-ffff8907edbff800.read_ahead_stats=
snapshot_time             1774879061.801516533 secs.nsecs
start_time                1774879053.672900763 secs.nsecs
elapsed_time              8.128615770 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-ffff8907edbff800.max_read_ahead_whole_mb=4