== sanity test 248c: verify whole file read behavior ===== 20:31:00 (1787445060)
llite.lustre-ffff8ffd91060000.read_ahead_stats=c
striped dir -i0 -c2 -H all_char  /mnt/lustre/d248c.sanity
llite.lustre-ffff8ffd91060000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 8.00623 seconds
llite.lustre-ffff8ffd91060000.read_ahead_stats=
snapshot_time                       1787445071.853726170 secs.nsecs
start_time                          1787445062.802544240 secs.nsecs
elapsed_time                        9.051181930 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-ffff8ffd91060000.read_ahead_stats=clear
llite.lustre-ffff8ffd91060000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 7.08312 seconds
llite.lustre-ffff8ffd91060000.read_ahead_stats=
snapshot_time                       1787445081.272784138 secs.nsecs
start_time                          1787445071.872702089 secs.nsecs
elapsed_time                        9.400082049 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-ffff8ffd91060000.max_read_ahead_whole_mb=4