== sanity test 248c: verify whole file read behavior ===== 15:12:12 (1787857932)
llite.lustre-ffff90fc58d3b000.read_ahead_stats=c
striped dir -i0 -c2 -H all_char  /mnt/lustre/d248c.sanity
llite.lustre-ffff90fc58d3b000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 7.62845 seconds
llite.lustre-ffff90fc58d3b000.read_ahead_stats=
snapshot_time                       1787857942.812439444 secs.nsecs
start_time                          1787857934.482728887 secs.nsecs
elapsed_time                        8.329710557 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-ffff90fc58d3b000.read_ahead_stats=clear
llite.lustre-ffff90fc58d3b000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 6.9444 seconds
llite.lustre-ffff90fc58d3b000.read_ahead_stats=
snapshot_time                       1787857951.877655497 secs.nsecs
start_time                          1787857942.826302369 secs.nsecs
elapsed_time                        9.051353128 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-ffff90fc58d3b000.max_read_ahead_whole_mb=4