== sanity test 248c: verify whole file read behavior ===== 03:38:11 (1732437491)
llite.lustre-ffff88012a661000.read_ahead_stats=c
striped dir -i0 -c2 -H crush2 /mnt/lustre/d248c.sanity
llite.lustre-ffff88012a661000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 33.3 seconds
llite.lustre-ffff88012a661000.read_ahead_stats=
snapshot_time             1732437494.486825585 secs.nsecs
start_time                1732437492.324898054 secs.nsecs
elapsed_time              2.161927531 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-ffff88012a661000.read_ahead_stats=clear
llite.lustre-ffff88012a661000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 33.6 seconds
llite.lustre-ffff88012a661000.read_ahead_stats=
snapshot_time             1732437496.894982338 secs.nsecs
start_time                1732437494.490034736 secs.nsecs
elapsed_time              2.404947602 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-ffff88012a661000.max_read_ahead_whole_mb=64