== sanity test 248c: verify whole file read behavior ===== 20:25:53 (1786839953)
llite.lustre-ffff934d05b9f800.read_ahead_stats=c
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d248c.sanity
llite.lustre-ffff934d05b9f800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 2.92052 seconds
llite.lustre-ffff934d05b9f800.read_ahead_stats=
snapshot_time                       1786839957.285149165 secs.nsecs
start_time                          1786839954.169093161 secs.nsecs
elapsed_time                        3.116056004 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-ffff934d05b9f800.read_ahead_stats=clear
llite.lustre-ffff934d05b9f800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 2.95119 seconds
llite.lustre-ffff934d05b9f800.read_ahead_stats=
snapshot_time                       1786839960.804357807 secs.nsecs
start_time                          1786839957.290735498 secs.nsecs
elapsed_time                        3.513622309 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-ffff934d05b9f800.max_read_ahead_whole_mb=4