== sanity test 248c: verify whole file read behavior ===== 03:21:09 (1753428069)
llite.lustre-ffff97fa101ce000.read_ahead_stats=c
striped dir -i0 -c2 -H crush /mnt/lustre/d248c.sanity
llite.lustre-ffff97fa101ce000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 3.4668 seconds
llite.lustre-ffff97fa101ce000.read_ahead_stats=
snapshot_time             1753428073.544122964 secs.nsecs
start_time                1753428069.919855311 secs.nsecs
elapsed_time              3.624267653 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-ffff97fa101ce000.read_ahead_stats=clear
llite.lustre-ffff97fa101ce000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 3.50233 seconds
llite.lustre-ffff97fa101ce000.read_ahead_stats=
snapshot_time             1753428077.595188006 secs.nsecs
start_time                1753428073.550138789 secs.nsecs
elapsed_time              4.045049217 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-ffff97fa101ce000.max_read_ahead_whole_mb=4