== sanity test 248c: verify whole file read behavior ===== 03:22:03 (1786951323)
llite.lustre-ffff9d2f129b5000.read_ahead_stats=c
striped dir -i0 -c2 -H crush  /mnt/lustre/d248c.sanity
llite.lustre-ffff9d2f129b5000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 5.68931 seconds
llite.lustre-ffff9d2f129b5000.read_ahead_stats=
snapshot_time                       1786951331.191241675 secs.nsecs
start_time                          1786951324.884981777 secs.nsecs
elapsed_time                        6.306259898 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-ffff9d2f129b5000.read_ahead_stats=clear
llite.lustre-ffff9d2f129b5000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 6.92383 seconds
llite.lustre-ffff9d2f129b5000.read_ahead_stats=
snapshot_time                       1786951339.780835531 secs.nsecs
start_time                          1786951331.199433588 secs.nsecs
elapsed_time                        8.581401943 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-ffff9d2f129b5000.max_read_ahead_whole_mb=4