== sanity test 248c: verify whole file read behavior ===== 20:37:50 (1781224670)
llite.lustre-ffff99ad84df5800.read_ahead_stats=c
striped dir -i0 -c2 -H all_char  /mnt/lustre/d248c.sanity
llite.lustre-ffff99ad84df5800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 7.35483 seconds
llite.lustre-ffff99ad84df5800.read_ahead_stats=
snapshot_time             1781224680.989923130 secs.nsecs
start_time                1781224672.871873998 secs.nsecs
elapsed_time              8.118049132 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-ffff99ad84df5800.read_ahead_stats=clear
llite.lustre-ffff99ad84df5800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 7.46073 seconds
llite.lustre-ffff99ad84df5800.read_ahead_stats=
snapshot_time             1781224691.105119252 secs.nsecs
start_time                1781224681.020514651 secs.nsecs
elapsed_time              10.084604601 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-ffff99ad84df5800.max_read_ahead_whole_mb=4