== sanity test 248c: verify whole file read behavior ===== 01:31:47 (1786944707)
llite.lustre-ffff8af2d07b6800.read_ahead_stats=c
striped dir -i0 -c2 -H crush  /mnt/lustre/d248c.sanity
llite.lustre-ffff8af2d07b6800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 6.85708 seconds
llite.lustre-ffff8af2d07b6800.read_ahead_stats=
snapshot_time                       1786944716.751342156 secs.nsecs
start_time                          1786944709.201586161 secs.nsecs
elapsed_time                        7.549755995 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-ffff8af2d07b6800.read_ahead_stats=clear
llite.lustre-ffff8af2d07b6800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 6.44507 seconds
llite.lustre-ffff8af2d07b6800.read_ahead_stats=
snapshot_time                       1786944725.118800439 secs.nsecs
start_time                          1786944716.771395294 secs.nsecs
elapsed_time                        8.347405145 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-ffff8af2d07b6800.max_read_ahead_whole_mb=4