== sanity test 248c: verify whole file read behavior ===== 17:23:05 (1781212985)
llite.lustre-ffff986f48445800.read_ahead_stats=c
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d248c.sanity
llite.lustre-ffff986f48445800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 7.57076 seconds
llite.lustre-ffff986f48445800.read_ahead_stats=
snapshot_time             1781212996.132600158 secs.nsecs
start_time                1781212987.772672961 secs.nsecs
elapsed_time              8.359927197 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-ffff986f48445800.read_ahead_stats=clear
llite.lustre-ffff986f48445800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 8.20058 seconds
llite.lustre-ffff986f48445800.read_ahead_stats=
snapshot_time             1781213005.606980191 secs.nsecs
start_time                1781212996.141376455 secs.nsecs
elapsed_time              9.465603736 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-ffff986f48445800.max_read_ahead_whole_mb=4