== sanity test 248c: verify whole file read behavior ===== 14:16:13 (1744136173)
llite.lustre-ffff8800af068800.read_ahead_stats=c
striped dir -i0 -c2 -H crush /mnt/lustre/d248c.sanity
llite.lustre-ffff8800af068800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 34.4 seconds
llite.lustre-ffff8800af068800.read_ahead_stats=
snapshot_time             1744136176.760937634 secs.nsecs
start_time                1744136174.586893901 secs.nsecs
elapsed_time              2.174043733 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-ffff8800af068800.read_ahead_stats=clear
llite.lustre-ffff8800af068800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 34.2 seconds
llite.lustre-ffff8800af068800.read_ahead_stats=
snapshot_time             1744136179.155343317 secs.nsecs
start_time                1744136176.767270886 secs.nsecs
elapsed_time              2.388072431 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-ffff8800af068800.max_read_ahead_whole_mb=4