== sanity test 248c: verify whole file read behavior ===== 01:17:59 (1788585479)
llite.lustre-ffff8b0e45283000.read_ahead_stats=c
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d248c.sanity
llite.lustre-ffff8b0e45283000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 6.75762 seconds
llite.lustre-ffff8b0e45283000.read_ahead_stats=
snapshot_time                       1788585489.076999228 secs.nsecs
start_time                          1788585481.513165439 secs.nsecs
elapsed_time                        7.563833789 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-ffff8b0e45283000.read_ahead_stats=clear
llite.lustre-ffff8b0e45283000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 7.08448 seconds
llite.lustre-ffff8b0e45283000.read_ahead_stats=
snapshot_time                       1788585497.815637263 secs.nsecs
start_time                          1788585489.102416780 secs.nsecs
elapsed_time                        8.713220483 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-ffff8b0e45283000.max_read_ahead_whole_mb=4