== sanity test 248c: verify whole file read behavior ===== 14:58:52 (1787857132)
llite.lustre-ffff90fb8654f000.read_ahead_stats=c
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d248c.sanity
llite.lustre-ffff90fb8654f000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 7.36199 seconds
llite.lustre-ffff90fb8654f000.read_ahead_stats=
snapshot_time                       1787857142.078249642 secs.nsecs
start_time                          1787857134.055328051 secs.nsecs
elapsed_time                        8.022921591 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-ffff90fb8654f000.read_ahead_stats=clear
llite.lustre-ffff90fb8654f000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 6.50037 seconds
llite.lustre-ffff90fb8654f000.read_ahead_stats=
snapshot_time                       1787857150.274758898 secs.nsecs
start_time                          1787857142.096825127 secs.nsecs
elapsed_time                        8.177933771 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-ffff90fb8654f000.max_read_ahead_whole_mb=4