== sanity test 248c: verify whole file read behavior ===== 10:58:44 (1786633124)
llite.lustre-ffff9c34d2530000.read_ahead_stats=c
striped dir -i0 -c2 -H crush  /mnt/lustre/d248c.sanity
llite.lustre-ffff9c34d2530000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 5.79106 seconds
llite.lustre-ffff9c34d2530000.read_ahead_stats=
snapshot_time                       1786633133.153505888 secs.nsecs
start_time                          1786633126.662483128 secs.nsecs
elapsed_time                        6.491022760 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-ffff9c34d2530000.read_ahead_stats=clear
llite.lustre-ffff9c34d2530000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 6.92481 seconds
llite.lustre-ffff9c34d2530000.read_ahead_stats=
snapshot_time                       1786633142.252385633 secs.nsecs
start_time                          1786633133.180934349 secs.nsecs
elapsed_time                        9.071451284 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-ffff9c34d2530000.max_read_ahead_whole_mb=4