== sanity test 248c: verify whole file read behavior ===== 16:35:09 (1788467709)
llite.lustre-ffff8f5121169800.read_ahead_stats=c
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d248c.sanity
llite.lustre-ffff8f5121169800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 6.4079 seconds
llite.lustre-ffff8f5121169800.read_ahead_stats=
snapshot_time                       1788467718.033663338 secs.nsecs
start_time                          1788467710.960042801 secs.nsecs
elapsed_time                        7.073620537 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-ffff8f5121169800.read_ahead_stats=clear
llite.lustre-ffff8f5121169800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 6.87847 seconds
llite.lustre-ffff8f5121169800.read_ahead_stats=
snapshot_time                       1788467726.617238956 secs.nsecs
start_time                          1788467718.067590550 secs.nsecs
elapsed_time                        8.549648406 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-ffff8f5121169800.max_read_ahead_whole_mb=4