== sanity test 248c: verify whole file read behavior ===== 07:21:15 (1787829675)
llite.lustre-ffff90c1f200d000.read_ahead_stats=c
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d248c.sanity
llite.lustre-ffff90c1f200d000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 6.00146 seconds
llite.lustre-ffff90c1f200d000.read_ahead_stats=
snapshot_time                       1787829684.183570945 secs.nsecs
start_time                          1787829677.378950133 secs.nsecs
elapsed_time                        6.804620812 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-ffff90c1f200d000.read_ahead_stats=clear
llite.lustre-ffff90c1f200d000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 6.10652 seconds
llite.lustre-ffff90c1f200d000.read_ahead_stats=
snapshot_time                       1787829692.300636601 secs.nsecs
start_time                          1787829684.196081655 secs.nsecs
elapsed_time                        8.104554946 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-ffff90c1f200d000.max_read_ahead_whole_mb=4