== sanity test 248c: verify whole file read behavior ===== 19:01:09 (1787785269)
llite.lustre-ffff9082981e5000.read_ahead_stats=c
striped dir -i0 -c2 -H all_char  /mnt/lustre/d248c.sanity
llite.lustre-ffff9082981e5000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 5.84438 seconds
llite.lustre-ffff9082981e5000.read_ahead_stats=
snapshot_time                       1787785278.491160118 secs.nsecs
start_time                          1787785271.830358770 secs.nsecs
elapsed_time                        6.660801348 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-ffff9082981e5000.read_ahead_stats=clear
llite.lustre-ffff9082981e5000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 8.01816 seconds
llite.lustre-ffff9082981e5000.read_ahead_stats=
snapshot_time                       1787785288.534572278 secs.nsecs
start_time                          1787785278.520280068 secs.nsecs
elapsed_time                        10.014292210 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-ffff9082981e5000.max_read_ahead_whole_mb=4