== sanity test 248c: verify whole file read behavior ===== 10:13:29 (1753366409)
llite.lustre-ffff9d0905530000.read_ahead_stats=c
striped dir -i0 -c2 -H crush2 /mnt/lustre/d248c.sanity
llite.lustre-ffff9d0905530000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 3.62824 seconds
llite.lustre-ffff9d0905530000.read_ahead_stats=
snapshot_time             1753366414.174285503 secs.nsecs
start_time                1753366410.374530646 secs.nsecs
elapsed_time              3.799754857 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-ffff9d0905530000.read_ahead_stats=clear
llite.lustre-ffff9d0905530000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 3.35969 seconds
llite.lustre-ffff9d0905530000.read_ahead_stats=
snapshot_time             1753366418.042583869 secs.nsecs
start_time                1753366414.178978140 secs.nsecs
elapsed_time              3.863605729 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-ffff9d0905530000.max_read_ahead_whole_mb=4