== sanity test 248c: verify whole file read behavior ===== 22:07:34 (1781662054)
llite.lustre-ffff96f760d85000.read_ahead_stats=c
striped dir -i0 -c2 -H crush  /mnt/lustre/d248c.sanity
llite.lustre-ffff96f760d85000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 2.75006 seconds
llite.lustre-ffff96f760d85000.read_ahead_stats=
snapshot_time                       1781662058.097520684 secs.nsecs
start_time                          1781662055.168556316 secs.nsecs
elapsed_time                        2.928964368 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-ffff96f760d85000.read_ahead_stats=clear
llite.lustre-ffff96f760d85000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 2.84509 seconds
llite.lustre-ffff96f760d85000.read_ahead_stats=
snapshot_time                       1781662061.499939985 secs.nsecs
start_time                          1781662058.104676487 secs.nsecs
elapsed_time                        3.395263498 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-ffff96f760d85000.max_read_ahead_whole_mb=4