== sanity test 248c: verify whole file read behavior ===== 09:57:50 (1773237470)
llite.lustre-ffff9d910aeca800.read_ahead_stats=c
striped dir -i0 -c2 -H crush2 /mnt/lustre/d248c.sanity
llite.lustre-ffff9d910aeca800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 3.81318 seconds
llite.lustre-ffff9d910aeca800.read_ahead_stats=
snapshot_time             1773237475.425850817 secs.nsecs
start_time                1773237471.412850854 secs.nsecs
elapsed_time              4.012999963 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-ffff9d910aeca800.read_ahead_stats=clear
llite.lustre-ffff9d910aeca800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 4.04765 seconds
llite.lustre-ffff9d910aeca800.read_ahead_stats=
snapshot_time             1773237480.118345460 secs.nsecs
start_time                1773237475.431389943 secs.nsecs
elapsed_time              4.686955517 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-ffff9d910aeca800.max_read_ahead_whole_mb=4