== sanity test 248c: verify whole file read behavior ===== 18:05:12 (1787868312)
llite.lustre-ffff8e23a0ac5800.read_ahead_stats=c
striped dir -i0 -c2 -H all_char  /mnt/lustre/d248c.sanity
llite.lustre-ffff8e23a0ac5800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 7.82476 seconds
llite.lustre-ffff8e23a0ac5800.read_ahead_stats=
snapshot_time                       1787868323.259540589 secs.nsecs
start_time                          1787868314.733676171 secs.nsecs
elapsed_time                        8.525864418 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-ffff8e23a0ac5800.read_ahead_stats=clear
llite.lustre-ffff8e23a0ac5800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 7.78191 seconds
llite.lustre-ffff8e23a0ac5800.read_ahead_stats=
snapshot_time                       1787868333.779508444 secs.nsecs
start_time                          1787868323.285535542 secs.nsecs
elapsed_time                        10.493972902 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-ffff8e23a0ac5800.max_read_ahead_whole_mb=4