== sanity test 248c: verify whole file read behavior ===== 19:55:20 (1788393320)
llite.lustre-ffff8e1ac3427000.read_ahead_stats=c
striped dir -i0 -c2 -H all_char  /mnt/lustre/d248c.sanity
llite.lustre-ffff8e1ac3427000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 6.67181 seconds
llite.lustre-ffff8e1ac3427000.read_ahead_stats=
snapshot_time                       1788393329.169472776 secs.nsecs
start_time                          1788393321.915120784 secs.nsecs
elapsed_time                        7.254351992 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-ffff8e1ac3427000.read_ahead_stats=clear
llite.lustre-ffff8e1ac3427000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 6.02103 seconds
llite.lustre-ffff8e1ac3427000.read_ahead_stats=
snapshot_time                       1788393337.506882672 secs.nsecs
start_time                          1788393329.204531204 secs.nsecs
elapsed_time                        8.302351468 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-ffff8e1ac3427000.max_read_ahead_whole_mb=4