== sanity test 248c: verify whole file read behavior ===== 20:45:59 (1784940359)
llite.lustre-ffff93a285456800.read_ahead_stats=c
striped dir -i0 -c2 -H crush  /mnt/lustre/d248c.sanity
llite.lustre-ffff93a285456800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 8.11347 seconds
llite.lustre-ffff93a285456800.read_ahead_stats=
snapshot_time                       1784940370.271755188 secs.nsecs
start_time                          1784940361.463415662 secs.nsecs
elapsed_time                        8.808339526 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-ffff93a285456800.read_ahead_stats=clear
llite.lustre-ffff93a285456800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 7.57748 seconds
llite.lustre-ffff93a285456800.read_ahead_stats=
snapshot_time                       1784940380.142182769 secs.nsecs
start_time                          1784940370.296590777 secs.nsecs
elapsed_time                        9.845591992 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-ffff93a285456800.max_read_ahead_whole_mb=4