== sanity test 248c: verify whole file read behavior ===== 09:51:22 (1782222682)
llite.lustre-ffff92ce52164000.read_ahead_stats=c
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d248c.sanity
llite.lustre-ffff92ce52164000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 8.48342 seconds
llite.lustre-ffff92ce52164000.read_ahead_stats=
snapshot_time                       1782222694.115616494 secs.nsecs
start_time                          1782222684.659439843 secs.nsecs
elapsed_time                        9.456176651 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-ffff92ce52164000.read_ahead_stats=clear
llite.lustre-ffff92ce52164000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 6.69197 seconds
llite.lustre-ffff92ce52164000.read_ahead_stats=
snapshot_time                       1782222703.122030767 secs.nsecs
start_time                          1782222694.174023602 secs.nsecs
elapsed_time                        8.948007165 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-ffff92ce52164000.max_read_ahead_whole_mb=4