== sanity test 248c: verify whole file read behavior ===== 01:57:39 (1788933459)
llite.lustre-ffff8897464c4800.read_ahead_stats=c
striped dir -i0 -c2 -H crush2  /mnt/lustre/d248c.sanity
llite.lustre-ffff8897464c4800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 7.5663 seconds
llite.lustre-ffff8897464c4800.read_ahead_stats=
snapshot_time                       1788933470.233152420 secs.nsecs
start_time                          1788933461.689520020 secs.nsecs
elapsed_time                        8.543632400 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-ffff8897464c4800.read_ahead_stats=clear
llite.lustre-ffff8897464c4800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 6.97387 seconds
llite.lustre-ffff8897464c4800.read_ahead_stats=
snapshot_time                       1788933479.492727447 secs.nsecs
start_time                          1788933470.266576330 secs.nsecs
elapsed_time                        9.226151117 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-ffff8897464c4800.max_read_ahead_whole_mb=4