== sanity test 248c: verify whole file read behavior ===== 09:04:19 (1788527059)
llite.lustre-ffff9f75d863c800.read_ahead_stats=c
striped dir -i0 -c2 -H all_char  /mnt/lustre/d248c.sanity
llite.lustre-ffff9f75d863c800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 6.47567 seconds
llite.lustre-ffff9f75d863c800.read_ahead_stats=
snapshot_time                       1788527068.850084679 secs.nsecs
start_time                          1788527061.666721036 secs.nsecs
elapsed_time                        7.183363643 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-ffff9f75d863c800.read_ahead_stats=clear
llite.lustre-ffff9f75d863c800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 6.59189 seconds
llite.lustre-ffff9f75d863c800.read_ahead_stats=
snapshot_time                       1788527077.782231805 secs.nsecs
start_time                          1788527068.872785942 secs.nsecs
elapsed_time                        8.909445863 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-ffff9f75d863c800.max_read_ahead_whole_mb=4