== sanity test 248c: verify whole file read behavior ===== 13:21:12 (1784049672)
llite.lustre-ffff9c28c6946000.read_ahead_stats=c
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d248c.sanity
llite.lustre-ffff9c28c6946000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 7.34352 seconds
llite.lustre-ffff9c28c6946000.read_ahead_stats=
snapshot_time                       1784049682.041083157 secs.nsecs
start_time                          1784049673.961601727 secs.nsecs
elapsed_time                        8.079481430 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-ffff9c28c6946000.read_ahead_stats=clear
llite.lustre-ffff9c28c6946000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 6.23693 seconds
llite.lustre-ffff9c28c6946000.read_ahead_stats=
snapshot_time                       1784049690.067057394 secs.nsecs
start_time                          1784049682.054823912 secs.nsecs
elapsed_time                        8.012233482 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-ffff9c28c6946000.max_read_ahead_whole_mb=4