== sanity test 248c: verify whole file read behavior ===== 02:07:17 (1739516837)
llite.lustre-ffff880136b6f800.read_ahead_stats=c
striped dir -i0 -c2 -H crush /mnt/lustre/d248c.sanity
llite.lustre-ffff880136b6f800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 17.1 seconds
llite.lustre-ffff880136b6f800.read_ahead_stats=
snapshot_time             1739516842.948903761 secs.nsecs
start_time                1739516838.696590620 secs.nsecs
elapsed_time              4.252313141 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-ffff880136b6f800.read_ahead_stats=clear
llite.lustre-ffff880136b6f800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 20.2 seconds
llite.lustre-ffff880136b6f800.read_ahead_stats=
snapshot_time             1739516847.173462184 secs.nsecs
start_time                1739516842.965381784 secs.nsecs
elapsed_time              4.208080400 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-ffff880136b6f800.max_read_ahead_whole_mb=4