== sanity test 248c: verify whole file read behavior ===== 11:51:29 (1786204289)
llite.lustre-ffff93f904e6e000.read_ahead_stats=c
striped dir -i0 -c2 -H crush2  /mnt/lustre/d248c.sanity
llite.lustre-ffff93f904e6e000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 3.87901 seconds
llite.lustre-ffff93f904e6e000.read_ahead_stats=
snapshot_time                       1786204294.190371885 secs.nsecs
start_time                          1786204290.006919626 secs.nsecs
elapsed_time                        4.183452259 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-ffff93f904e6e000.read_ahead_stats=clear
llite.lustre-ffff93f904e6e000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 3.73176 seconds
llite.lustre-ffff93f904e6e000.read_ahead_stats=
snapshot_time                       1786204298.456297332 secs.nsecs
start_time                          1786204294.200273525 secs.nsecs
elapsed_time                        4.256023807 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-ffff93f904e6e000.max_read_ahead_whole_mb=4