== sanity test 248c: verify whole file read behavior ===== 21:45:51 (1767321951)
llite.lustre-ffff9fd85dc81000.read_ahead_stats=c
striped dir -i0 -c2 -H all_char /mnt/lustre/d248c.sanity
llite.lustre-ffff9fd85dc81000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 8.39349 seconds
llite.lustre-ffff9fd85dc81000.read_ahead_stats=
snapshot_time             1767321963.261141584 secs.nsecs
start_time                1767321954.143388264 secs.nsecs
elapsed_time              9.117753320 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-ffff9fd85dc81000.read_ahead_stats=clear
llite.lustre-ffff9fd85dc81000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 11.7043 seconds
llite.lustre-ffff9fd85dc81000.read_ahead_stats=
snapshot_time             1767321977.285115127 secs.nsecs
start_time                1767321963.276399741 secs.nsecs
elapsed_time              14.008715386 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-ffff9fd85dc81000.max_read_ahead_whole_mb=4