== sanity test 248c: verify whole file read behavior ===== 11:59:40 (1781625580)
llite.lustre-ffff96ff2b06d000.read_ahead_stats=c
striped dir -i0 -c2 -H all_char  /mnt/lustre/d248c.sanity
llite.lustre-ffff96ff2b06d000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 5.11492 seconds
llite.lustre-ffff96ff2b06d000.read_ahead_stats=
snapshot_time                       1781625587.615231711 secs.nsecs
start_time                          1781625581.970132848 secs.nsecs
elapsed_time                        5.645098863 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-ffff96ff2b06d000.read_ahead_stats=clear
llite.lustre-ffff96ff2b06d000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 4.47756 seconds
llite.lustre-ffff96ff2b06d000.read_ahead_stats=
snapshot_time                       1781625593.425635207 secs.nsecs
start_time                          1781625587.641723860 secs.nsecs
elapsed_time                        5.783911347 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-ffff96ff2b06d000.max_read_ahead_whole_mb=4