== sanity test 248c: verify whole file read behavior ===== 06:29:42 (1788604182)
llite.lustre-ffff9a1490963000.read_ahead_stats=c
striped dir -i0 -c2 -H all_char /mnt/lustre/d248c.sanity
llite.lustre-ffff9a1490963000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 5.83187 seconds
llite.lustre-ffff9a1490963000.read_ahead_stats=
snapshot_time             1788604192.017648603 secs.nsecs
start_time                1788604185.336264717 secs.nsecs
elapsed_time              6.681383886 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-ffff9a1490963000.read_ahead_stats=clear
llite.lustre-ffff9a1490963000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 5.67916 seconds
llite.lustre-ffff9a1490963000.read_ahead_stats=
snapshot_time             1788604199.378235277 secs.nsecs
start_time                1788604192.041390719 secs.nsecs
elapsed_time              7.336844558 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-ffff9a1490963000.max_read_ahead_whole_mb=4