== sanity test 248c: verify whole file read behavior ===== 16:49:10 (1786567750)
llite.lustre-ffff91df8529a000.read_ahead_stats=c
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d248c.sanity
llite.lustre-ffff91df8529a000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 5.6346 seconds
llite.lustre-ffff91df8529a000.read_ahead_stats=
snapshot_time                       1786567758.559689138 secs.nsecs
start_time                          1786567752.290600804 secs.nsecs
elapsed_time                        6.269088334 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-ffff91df8529a000.read_ahead_stats=clear
llite.lustre-ffff91df8529a000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 6.25926 seconds
llite.lustre-ffff91df8529a000.read_ahead_stats=
snapshot_time                       1786567766.288802775 secs.nsecs
start_time                          1786567758.591202114 secs.nsecs
elapsed_time                        7.697600661 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-ffff91df8529a000.max_read_ahead_whole_mb=4